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.
Which of the following actions will not increase the sensitivity of a moving coil galvanometer?
using a strong temporary magnet
increasing the area and number of turns of the coil
using a week hair spring
using a light pointer
Correct answer is D
No explanation has been provided for this answer.
draws high current
has a very low resistance
has a very high resistance
is able to measure both voltage and current
Correct answer is D
No explanation has been provided for this answer.
2.0 \(\mu F\)
1.5 \(\mu F\)
0.6 \(\mu F\)
0.5 \(\mu F\)
Correct answer is D
No explanation has been provided for this answer.
2.0 x 107\(\Omega^{-1} m^{-1}\)
5.0 x 107\(\Omega^{-1} m^{-1}\)
2.0 x 108\(\Omega^{-1} m^{-1}\)
5.0 x 108\(\Omega^{-1} m^{-1}\)
Correct answer is B
K = \(\frac{1}{RA} = \frac{1}{0.1 \times 2 \times 10^{-7}} = 5 \times 10^7\)
Which of the following is a unit of the time rate of flow of electric charges?
coulomb
ampere
volt
watt
Correct answer is B
No explanation has been provided for this answer.