Electrical Engineering Multiple Choice – Electromagnetic Induction MCQs Part 2
Contents
- 1 The inductor that has least eddy current losses
- 2 Current in an inductance is proportional to
- 3 The circuit component that opposes the change in current is
- 4 An EMF of 16 volts is induced in a coil having inductance 4 H. The rate of change of current should and must be
- 5 The force acting on a conductor that is 3m long and is carrying a current of 50 amperes at right angle to a magnetic field having a flux density of 0.67 tesla is
The inductor that has least eddy current losses
The inductor that has least eddy current losses
- Air core
- Iron core
- Laminated iron core
- Powdered iron core
Correct answer: 1. Air core
Current in an inductance is proportional to
Current in an inductance is proportional to
- Magnetic field
- Voltage across the inductance
- Both of these
- None of these
Correct answer: 1. Magnetic field
The circuit component that opposes the change in current is
The circuit component that opposes the change in current is
- Capacitance
- Inductance
- Inductance and capacitance
- Resistance
Correct answer: 2. Inductance
An EMF of 16 volts is induced in a coil having inductance 4 H. The rate of change of current should and must be
An EMF of 16 volts is induced in a coil having inductance 4 H. The rate of change of current should and must be
- 1 A/s
- 2 A/s
- 4 A/s
- 8 A/s
Correct answer: 3. 4 A/s
The force acting on a conductor that is 3m long and is carrying a current of 50 amperes at right angle to a magnetic field having a flux density of 0.67 tesla is
The force acting on a conductor that is 3m long and is carrying a current of 50 amperes at right angle to a magnetic field having a flux density of 0.67 tesla is
- 100 N
- 1000 N
- 400 N
- 600 N
Correct answer: 1. 100 N