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physics-
In Fig. 
represents time and 
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In Fig. represents time and represents activity of a radioactive sample. Then the activity of sample, varies with time according to the curve
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Which of the following are iosoelectronic and isostructural NO3,CO32, ClO, SO
Which of the following are iosoelectronic and isostructural NO3,CO32, ClO, SO
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Which of the following represent the given mode of hybrid is at ion sp2,sp2,spandsp from left to right:
Which of the following represent the given mode of hybrid is at ion sp2,sp2,spandsp from left to right:
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Figure shows a square loop 
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is 
. The value of magnetic field at the centre of the loop assuming uniform wire is
Figure shows a square loop with edge length . The resistance of the wire is and that of is . The value of magnetic field at the centre of the loop assuming uniform wire is
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Find magnetic field at 
Find magnetic field at
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How many π-bonds are present in Napthalene molecule-
How many π-bonds are present in Napthalene molecule-
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A proton accelerated by a potential difference 
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physics-General
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A current carrying closed loop in the form of a right angle isosceles triangle is placed in a uniform magnetic field acting along 
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A current carrying closed loop in the form of a right angle isosceles triangle is placed in a uniform magnetic field acting along . If the magnetic force on the arm is , the force on the arm is
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In the adjacent figure is shown a closed path 
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In the adjacent figure is shown a closed path A long straight conductor carrying a current passes through and perpendicular to the plane of the paper. Then which of the following holds good?
physics-General
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A candidate connects a moving coil voltmeter 
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and resistor 
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A candidate connects a moving coil voltmeter and a moving coil ammeter and resistor as shown in figure? If the voltmeter reads 10 V and the ammeter reads 2 A and than R is
physics-General
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Equal current 
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Equal current flows in two segments of a circular loop in the direction shown in figure. Radius of the loop is . The magnitude of magnitude field induction at the centre of the loop is
physics-General
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A wire carrying current is shaped as shown. Section is a quarter circle of radius . The magnetic field is directed
A wire carrying current is shaped as shown. Section is a quarter circle of radius . The magnetic field is directed
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Two wires 
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physics-General
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A uniform conducting wire has a mass of 
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physics-General
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Two long straight wires are set parallel to each other. Each carries a current in the opposite direction and the separation between them is 
The intensity of the magnetic field midway between them is
Two long straight wires are set parallel to each other. Each carries a current in the opposite direction and the separation between them is The intensity of the magnetic field midway between them is
physics-General
