ECE :: Electromagnetic Induction
- Increasing the field or increasing the current will decrease the force on the conductor.
- A moving magnetic field will produce the same effect as a conductor that is moving.
- Which of the fpllowing inductor will have the least eddy current losses ?
- A 500 turns solenoid develops an average induced voltage of 60 V. Over what time interval must a flux change of 0.06 Wb occur to produce such a voltage?
- A coil with negligible resistance has 50V across it with 10 mA. The inductive reactance is
- For a purely inductive circuit which of the following is true?
- The core of a coil has a length of 200 mm. The inductance of coil is 6 mH. If the core length is doubled, all other quantities, remaining the same, the inductance will be
- A 200 turn coil has an inductance of 12 mH. If the number of turns is increased to 400 turns, all other quantities (area, length etc.) remaining the same, the inductance will be
- An e.m.f. of 16 volts is induced in a coil of inductance 4H. The rate of change of current must be
- Which of the following circuit element stores energy in the electromagnetic field?
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