Electricity And Magnetism - Study Mode
[#161] Use of signal in an electrical circuit. It is indicated by . . . . . . . .?
Correct Answer
(A) Rheostat
[#162] Why does the core of a transformer is laminated?
Correct Answer
(C) To reduce the eddy current loss
[#163] What do the given symbol in figure represents in a reference of electric circuit?
Correct Answer
(C) electric bulb
[#164] An electric bulb of 100 W is used for 8 hours per day. The energy used by a bulb in a day is . . . . . . . . unit
Correct Answer
(D) 0.8
[#165] To prevent damage from lightning, lightning conductors are used on tall structures. The lightning conductor
Correct Answer
(B) should be made of a good conductor but can be of any shape