Physics-
General
Easy
Question
Consider the situation shown in the figure. The wire AB is sliding on the fixed rails with a constant velocity. If the wire AB is replaced by semicircular wire, the magnitude of the induced current will
- Increase
- Remain the same
- Decrease
- Increase or decrease depending on whether the semicircle bulges towards the resistance or away from it
The correct answer is: Remain the same
Effective length between A and B remains same.
Related Questions to study
Physics-
A thin semicircular conducting ring of radius R is falling with its plane vertical in a horizontal magnetic induction B. At the position MNQ, the speed of the ring is V and the potential difference developed across the ring is
A thin semicircular conducting ring of radius R is falling with its plane vertical in a horizontal magnetic induction B. At the position MNQ, the speed of the ring is V and the potential difference developed across the ring is
Physics-General
Physics-
An electron moves along the line AB, which lies in the same plane as a circular loop of conducting wires as shown in the diagram. What will be the direction of current induced if any, in the loop
An electron moves along the line AB, which lies in the same plane as a circular loop of conducting wires as shown in the diagram. What will be the direction of current induced if any, in the loop
Physics-General
Physics-
In an inductor of inductance L = 100 mH, a current of 
is flowing. The energy stored in the inductor is
In an inductor of inductance L = 100 mH, a current of is flowing. The energy stored in the inductor is
Physics-General
Physics-
In a transformer, the number of turns in primary coil and secondary coil are 5 and 4 respectively. If 240 V is applied on the primary coil, then the ratio of current in primary and secondary coil is
In a transformer, the number of turns in primary coil and secondary coil are 5 and 4 respectively. If 240 V is applied on the primary coil, then the ratio of current in primary and secondary coil is
Physics-General
Physics-
The primary winding of a transformer has 100 turns and its secondary winding has 200 turns. The primary is connected to an ac supply of 120 V and the current flowing in it is 10 A. The voltage and the current in the secondary are
The primary winding of a transformer has 100 turns and its secondary winding has 200 turns. The primary is connected to an ac supply of 120 V and the current flowing in it is 10 A. The voltage and the current in the secondary are
Physics-General
Physics-
Choke coil works on the principle of
Choke coil works on the principle of
Physics-General
Chemistry-
The spin only magnetic moment value (in Bohrmagneton units) of 
is
The spin only magnetic moment value (in Bohrmagneton units) of is
Chemistry-General
Chemistry-
Of the following complex ions, one exhibits isomerism. That is
Of the following complex ions, one exhibits isomerism. That is
Chemistry-General
Chemistry-
In an octahedral complex , if ligands on one axis are displaced little away from their ideal positions the crystal field splitting of d-orbitals for this complex is as given below
The ligands are displaced on which axis/axes
In an octahedral complex , if ligands on one axis are displaced little away from their ideal positions the crystal field splitting of d-orbitals for this complex is as given below
The ligands are displaced on which axis/axes
Chemistry-General
Chemistry-
Which one of the following complex species does not obey the EAN rule?
Which one of the following complex species does not obey the EAN rule?
Chemistry-General
Chemistry-
The complex 
The complex
Chemistry-General
Chemistry-
Which has maximum number of unpaired electrons
Which has maximum number of unpaired electrons
Chemistry-General
Chemistry-
The complex 
Can be formally formed from 
by which one of the following sequences of substitution of the chloride ions?
The complex Can be formally formed from by which one of the following sequences of substitution of the chloride ions?
Chemistry-General
Chemistry-
Statement 1:Known elements may contain as many as 32 electrons in an energy level but only s and p sublevel electrons are considered for the octet rule.
Statement 2:For any atom, electrons present in s- and p- subshells assume greater stability.
Statement 1:Known elements may contain as many as 32 electrons in an energy level but only s and p sublevel electrons are considered for the octet rule.
Statement 2:For any atom, electrons present in s- and p- subshells assume greater stability.
Chemistry-General
Chemistry-
Statement 1:Solubility of 
in water increases with rise in temperature, although it is exothermic dissolution
Statement 2:Changes showing exothermic nature occurs in backward direction if temperature is raised
Statement 1:Solubility of in water increases with rise in temperature, although it is exothermic dissolution
Statement 2:Changes showing exothermic nature occurs in backward direction if temperature is raised
Chemistry-General
