Which of the following circuit elements will oppose the change in circuit current ?

Related Mcqs:

A laminated iron core has reduced eddy-current losses because____________?

A. more wire can be used with less D.C. resistance in coil B. the laminations are insulated from each other C. the magnetic flux is concentrated in the air gap of the core D. the laminations are stacked vertfcally...

A conductor carries 125 amperes of current under 60° to a magnetic field of 1.1 tesla. The force on the conductor will be nearly______________?

A. 50 N B. 120 N C. 240 N D. 480 N...

Weber is the unit of_____________?

A. Magnetic field intensity B. magnetic induction C. magnetic flux D. self-inductance...

The emf induced in a conductor of unit length moving with unit velocity at right angles to a magnetic field is equal to_____________?

A. Magnetic flux density B. Torque C. Mutual induction D. Motional emf...

An aeroplane of wingspan 10m flies from the equator towards the North Pole. The wings are perpendicular to the vertical component of the earths magnetic field (B = 4×10-5T). At maximum speed an emf of 96mV is induced across the wing tips. The maximum speed of the aeroplane is____________?

A. 150msec-1 B. 384msec-1 C. 38.4msec-1 D. 200msec-1...