Physics Questions and Answers
If you want to learn more about the nature and properties of matter and energy or you're simply preparing for a Physics exam, these Physics past questions and answers are ideal for you.
If you want to learn more about the nature and properties of matter and energy or you're simply preparing for a Physics exam, these Physics past questions and answers are ideal for you.
When the coil is moved toward the stationary magnet
When the coil is moved away from the stationary magnet
when the coil is held stationary but the magnet is moved towards the coil
when both the coil and the magnet are held stationary
when the coil is held stationary but the magnet is moved away from the cell
Correct answer is D
No explanation has been provided for this answer.
5 volts
10 volts
15 volts
20 volts
25 volts
Correct answer is B
for transformer,
Es = Ns, Es = e.m.f of secondary
Ep = Np, Ep = e.m.f of primary
NS = number of turns in secondary
Ns = number of turns in primary
\(\frac{30}{300}\) = \(\frac{x}{100}\)
300X = 3000X
= 10 volts
all
only i and ii
only iii and iv
iii,iv and v
none of them
Correct answer is C
A graph of l against T\(^2\) will be linear
With T vs \( \sqrt{I} \)
Which of the following is NOT directly associated with direct current (DC)?
A dry cell
a moving coil galvanometer
a transformer
a lead- acid accumulator
a commutator
Correct answer is C
No explanation has been provided for this answer.
1.12m
2.14cm
2.52cm
2.80cm
2.24cm
Correct answer is E
Extension & Load
Extension = K constant
\(\frac{\text{load}}{0.56cm}\) = \(\frac{X}{20g}\)
X = 2.24cm