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Physics questions and answers

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.

1,591.

An ammeter with a full scale deflection of 10mA has an internal resistance 0.5Ω. calculate the resistance of the shunt required to adapt it to read up to 3A

A.

0.0167Ω

B.

0.0130Ω

C.

0.0250Ω

D.

0.1000Ω

Correct answer is A

R2=I1R1I2=0.01×52.99

= 0.0167

1,592.

The unit of capacitance is

A.

farad

B.

coulomb

C.

henry

D.

ohms

Correct answer is A

No explanation has been provided for this answer.

1,593.

Which of the following substances does not conduct electricity?

A.

graphite

B.

glass

C.

sulphuric acid

D.

table salt solution

Correct answer is B

No explanation has been provided for this answer.

1,594.

When the pointed end of an uncharged optical pin is brought near the cap cf a positively charged electroscope, it is observed that the gold

A.

collapse slowly

B.

vibrate

C.

are not affected

D.

diverge rapidly

Correct answer is A

No explanation has been provided for this answer.

1,595.

The capacitance of a parallel-plate capacitor

A.

decreases when the seperation between the plate decreases

B.

increases when the optential difference between the plates is increased

C.

is greater without a dielectric material between the plates than with a dielectric

D.

is greater with a dielectric between the plates than without a dielectric.

Correct answer is D

No explanation has been provided for this answer.