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 = \(\frac{1}{2}QV = \frac{1}{2} \times 1.6 \times 10^{-19} \times 40000\)
= 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.
Nm
N
Nm-2
Nm2
Nm1
Correct answer is C
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.
30
240
248
450
1248
Correct answer is A
\(\frac{E_p}{E_s} = \frac{n_p}{n_s}\)
ns = 30