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A square loop of wire is moving through a uniform magnetic field. The normal to the loop is oriented parallel to the magnetic field. The emf induced in the loop is:
NETNUST Entry TestPhysicsElectromagnetic Induction
The magnitude of motional emf is calculated by:
NETNUST Entry TestPhysicsElectromagnetic Induction
A metal rod of length 1 m is moving at a speed of $1 ms^{-1}$ in a direction making an angle of $30^{\circ}$ with 0.5 T magnetic field. The emf produced in the rod is:
NETNUST Entry TestPhysicsElectromagnetic Induction
Motional emf is called motional:
NETNUST Entry TestPhysicsElectromagnetic Induction
The gradient of potential along the conductor of length L moving across a magnetic field is given by:
NETNUST Entry TestPhysicsElectromagnetic Induction
When the conductor is moved across a magnetic field:
NETNUST Entry TestPhysicsElectromagnetic Induction
In the equilibrium state, the potential difference between two ends of the conductor moving across a magnetic field, is called:
NETNUST Entry TestPhysicsElectromagnetic Induction
When a conductor is moved across a magnetic field, both the electrostatic force $F_{e}$ and the magnetic force $F_{m}$ are set up. When the system reaches equilibrium state, then:
NETNUST Entry TestPhysicsElectromagnetic Induction
When a conductor is moved across a magnetic field, the redistribution of charge sets up:
NETNUST Entry TestPhysicsElectromagnetic Induction
When a conductor is moved with its length parallel to the lines of magnetic field:
NETNUST Entry TestPhysicsElectromagnetic Induction
The product of induced current and the resistance of the wire through which the current is passing is called:
NETNUST Entry TestPhysicsElectromagnetic Induction
The unit of induced emf is:
NETNUST Entry TestPhysicsElectromagnetic Induction
In order that no emf should be induced in a flat loop of wire placed in changing magnetic field, the angle between $\overrightarrow{B}$ and $\triangle \overrightarrow{A}$ should be:
NETNUST Entry TestPhysicsElectromagnetic Induction
A coil of constant area is placed in a constant magnetic field. An induced current is produced in the coil when:
NETNUST Entry TestPhysicsElectromagnetic Induction
Instead of moving the coil towards a magnet, the magnet is moved towards the coil with the same speed. The galvanometer shows current:
NETNUST Entry TestPhysicsElectromagnetic Induction
When there is no relative motion between the magnet and coil, the galvanometer indicates:
NETNUST Entry TestPhysicsElectromagnetic Induction
The magnitude of induced emf depends upon the:
NETNUST Entry TestPhysicsElectromagnetic Induction
In magnetic coil experiment, emf can be produced by:
NETNUST Entry TestPhysicsElectromagnetic Induction
The induced current in the loop can be increased by:
NETNUST Entry TestPhysicsElectromagnetic Induction
The induced current in a conductor depends upon:
NETNUST Entry TestPhysicsElectromagnetic Induction
The phenomemon of generation of induced emf is called:
NETNUST Entry TestPhysicsElectromagnetic Induction
An induced current can be produced by:
NETNUST Entry TestPhysicsElectromagnetic Induction
An emf is set up in a conductor when it:
NETNUST Entry TestPhysicsElectromagnetic Induction
The current produced by moving a loop of wire across a magnetic field is called:
NETNUST Entry TestPhysicsElectromagnetic Induction
Presence of Photon was confirmed by
NETNUST Entry TestPhysicsDawn of Modern Physics