4.0 x 10-26J
4.0 x 10-21J
6.4 x 10-20J
3.2 x 10-15J
2.5 x 10-20J
Correct answer is D
E = 12QV=12×1.6×10−19×40000
= 3.2 x 10-15J
i and iii only
i and ii only
ii and iv only
iii and iv only
i, ii and iv only
Correct answer is A
No explanation has been provided for this answer.
An induction coil is generally used to?
rectify an alternating current
produce a large input voltage
smoothen a pulsating direct current
modulate an incoming signal
produce a large output voltage
Correct answer is E
An induction coil is a device used to produce high emf from a low-voltage direct current (DC) supply.