Advertisements
Advertisements
Question
State whether the following statement are true or false:
A generator works on the principle of electromagnetic induction.
Solution
State whether the following statements are true or false:
True. Generator works on the principle of electromagnetic induction.
APPEARS IN
RELATED QUESTIONS
A solenoid of length 1.5 m and 4 cm in diameter possesses 10 turns per metre. A current of 5 A is flowing through it. The magnetic induction at a point inside the solenoid along the axis is ............................. .
(μ0 = 4π × 10-7 Wb/Am)
- π × 10-5 T
- 2π × 10-5 T
- 3π × 10-5 T
- 4π × 10-5 T
It is desired to measure the magnitude of field between the poles of a powerful loud speaker magnet. A small flat search coil of area 2 cm2 with 25 closely wound turns, is positioned normal to the field direction, and then quickly snatched out of the field region. Equivalently, one can give it a quick 90° turn to bring its plane parallel to the field direction. The total charge flown in the coil (measured by a ballistic galvanometer connected to coil) is 7.5 mC. The combined resistance of the coil and the galvanometer is 0.50 Ω. Estimate the field strength of magnet.
How does an electromagnet differ forma permanent magnet?
Describe different ways to induce current in a coil of wire.
Electromagnetic induction means ______.
Write Fleming’s right hand thumb rule with the help of diagram.
Write the two names in the following diagram.
Right hand thumb rule.
A layer of atmosphere that reflects medium frequency radio waves which is ineffective during night, is ______.
The condition for the praenomen of electromagnetic induction is that there must be a relative motion between ____________.
A 0.4 m wire, stretched horizontally, carries an electric current of 15 A, in a magnetic field whose magnetic field intensity is 0.1 N/Am. What is the magnitude of the wire?