The induced e.m.f. will be maximum when a conductor cuts the magnetic field at an angle of
1). 15°
2). 30°
3). 45°
4). 90°
The induced emf when a conductor cuts the magnetic field is
$(e = Bil\sin \theta)$
B is magnetic flux density
i is the current flowing through the conductor
l is the length of the conductor
θ is the angle
Induced emf is maximum at θ equals to 90 degrees.3. A JFET is similar in operation to ___________ valve
4. Insertion of resistance in the rotor of an induction motor to develop a given torque
5. Arc in a circuit breaker is interrupted at
6. The inductive interference between power and communication line can be minimized by
7. Which of the following mercury arc rectifier will deliver least undulating current?
8. For power factor correction, synchronous motors operate at
9. A zener diode utilizes ___________ characteristics for its operation.
10. In a ballistic galvanometer, the deflecting torque is proportional to