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General
Easy
Question
There exists a uniform but time varying magnetic field B = a + bt normal to plane of paper in a cylindrical region as shown. A rectangular conducting loop is placed as shown. Induced emf in branches AB and BC are
The correct answer is:
Related Questions to study
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In given figure, a wire loop has been bent so that it has three segments: segment ab (a quarter circle), bc (a square corner), and ca (straight). Here are three choices for a magnetic field through the loop:
Where 
is in milliteslas and t is in seconds. If the induced current in the loop due to 
are 
respectively then
In given figure, a wire loop has been bent so that it has three segments: segment ab (a quarter circle), bc (a square corner), and ca (straight). Here are three choices for a magnetic field through the loop:
Where is in milliteslas and t is in seconds. If the induced current in the loop due to are respectively then
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Three wire loops and an observer are positioned as shown in the figure. From the observer's point of view, a current I flows counterclockwise in the middle loop, which is moving towards the observer with a velocity v. Loops A and B are stationary. This same observer would notice that
Three wire loops and an observer are positioned as shown in the figure. From the observer's point of view, a current I flows counterclockwise in the middle loop, which is moving towards the observer with a velocity v. Loops A and B are stationary. This same observer would notice that
physics-General
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At t = 0 a charge q is at the origin and moving in the y-direction with velocity 
in a magnetic field that is for y > 0 out of page and given by 
into the page and given 
The charge's subsequent trajectory is shown in the sketch. From this information, we can deduce that
At t = 0 a charge q is at the origin and moving in the y-direction with velocity in a magnetic field that is for y > 0 out of page and given by into the page and given The charge's subsequent trajectory is shown in the sketch. From this information, we can deduce that
physics-General
physics-
A conducting bar rolls down a slope made of conducting rails. The bottom ends of the rails are connected by another conducting rail as shown in the figure. There is a uniform magnetic field B pointing upward. Due to the bar's motion, there is an induced current in the bar-rail circuit. What is the direction of the magnetic force on the bar?
A conducting bar rolls down a slope made of conducting rails. The bottom ends of the rails are connected by another conducting rail as shown in the figure. There is a uniform magnetic field B pointing upward. Due to the bar's motion, there is an induced current in the bar-rail circuit. What is the direction of the magnetic force on the bar?
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A conducting rod AC of length 4l is rotated about a point O in a uniform magnetic field directed into the paper. AO = l and OC = 3l. Then
A conducting rod AC of length 4l is rotated about a point O in a uniform magnetic field directed into the paper. AO = l and OC = 3l. Then
physics-General
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A parallel-plate capacitor is connected to a battery. V0 is the potential difference between the plates, Q0 the charge on the positive plate, E0 the magnitude of the electric field. The original vacuum between the plates is filled with a dielectric and then the battery is disconnected. If the corresponding electrical parameters for the final state of the capacitor are denoted by a subscript f, which of the following is true?
A parallel-plate capacitor is connected to a battery. V0 is the potential difference between the plates, Q0 the charge on the positive plate, E0 the magnitude of the electric field. The original vacuum between the plates is filled with a dielectric and then the battery is disconnected. If the corresponding electrical parameters for the final state of the capacitor are denoted by a subscript f, which of the following is true?
physics-General
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A capacitor of capacitance 0.1 
F is connected to a battery of emf 8V as shown in the fig. Under steady state condition
A capacitor of capacitance 0.1 F is connected to a battery of emf 8V as shown in the fig. Under steady state condition
physics-General
physics-
In the circuit shown in the figure, switches S1 and S2 have been closed for a long time
In the circuit shown in the figure, switches S1 and S2 have been closed for a long time
physics-General
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In the circuit shown, the switch is shifted from position 1 
2 at t = 0. The switch was initially in position 1 since a long time. The graph between charge on capacitor C and time 't' is
In the circuit shown, the switch is shifted from position 1 2 at t = 0. The switch was initially in position 1 since a long time. The graph between charge on capacitor C and time 't' is
physics-General
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In the circuit shown, the charge on the 3F capacitor at steady state will be
In the circuit shown, the charge on the 3F capacitor at steady state will be
physics-General
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The figure below shows four parallel plate capacitors : A, B, C and D. Each capacitor carries the same charge q and has the same plate area A. As suggested by the figure, the plates of capacitors A and C are separated by a distance d while those of B and D are separated by a distance 2d. Capacitors A and B are maintained in vacuum while capacitors C and D contain dielectrics with constant k = 5.
The figure below shows four parallel plate capacitors : A, B, C and D. Each capacitor carries the same charge q and has the same plate area A. As suggested by the figure, the plates of capacitors A and C are separated by a distance d while those of B and D are separated by a distance 2d. Capacitors A and B are maintained in vacuum while capacitors C and D contain dielectrics with constant k = 5.
physics-General
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The figure below shows four parallel plate capacitors : A, B, C and D. Each capacitor carries the same charge q and has the same plate area A. As suggested by the figure, the plates of capacitors A and C are separated by a distance d while those of B and D are separated by a distance 2d. Capacitors A and B are maintained in vacuum while capacitors C and D contain dielectrics with constant k = 5.
Which list below places the capacitors in order of increasing capacitance?
The figure below shows four parallel plate capacitors : A, B, C and D. Each capacitor carries the same charge q and has the same plate area A. As suggested by the figure, the plates of capacitors A and C are separated by a distance d while those of B and D are separated by a distance 2d. Capacitors A and B are maintained in vacuum while capacitors C and D contain dielectrics with constant k = 5.
Which list below places the capacitors in order of increasing capacitance?
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Two identical capacitors 1 and 2 are connected in series. The capacitor 2 contains a dielectric slab of constant K as shown. They are connected to a battery of emf V0 volts. The dielectric slab is then removed. Let Q1 and Q2 be the charge stored in the capacitors before removing the slab and Q1 and Q2 be the values after removing the slab. Then
Two identical capacitors 1 and 2 are connected in series. The capacitor 2 contains a dielectric slab of constant K as shown. They are connected to a battery of emf V0 volts. The dielectric slab is then removed. Let Q1 and Q2 be the charge stored in the capacitors before removing the slab and Q1 and Q2 be the values after removing the slab. Then
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Which of the following is the most suitable arrangement for measuring the unknown resistance X which has resistance in the range 0 to 10
. Resistance of ammeter 1, resistance of voltmeter 10k
Which of the following is the most suitable arrangement for measuring the unknown resistance X which has resistance in the range 0 to 10. Resistance of ammeter 1, resistance of voltmeter 10k
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Three long conducting plate A, B & C having charges +q, –2q & +q as shown in figure. Here plate A and C are fixed. If the switch S is closed. The middle plate (B) will start moving in
Three long conducting plate A, B & C having charges +q, –2q & +q as shown in figure. Here plate A and C are fixed. If the switch S is closed. The middle plate (B) will start moving in
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