emi

Related Questions

• Large transformers, when used for some time, become hot and are cooled by circulating oil. The heating of transformer is due to

  ---

• When a wire loop is rotated in a magnetic field, the direction of induced e.m.f. changes once in each

  ---

• A solenoid is 1.5 m long and its inner diameter is 4.0 cm. It has three layers of windings of 1000 turns each and carries a current of 2.0 amperes. The magnetic flux for a cross-section of the solenoid is nearly

  ---

• The north pole of a magnet is brought near a metallic ring. The direction of the induced current in the ring will be

  ---

• The magnetic flux through a circuit of resistance $R$ changes by an amount $\Delta \varphi $ in time $\Delta t$, Then the total quantity of electric charge $Q$, which passing during this time through any point of the circuit is given by

  ---