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.
An electric charge could be transmitted through
wood, rubber and stone
paper, clay and plastic
glass, acid and cloth
The human body, water and metals
all of the above
Correct answer is D
No explanation has been provided for this answer.
Every house supplied with electricity is provided with a box of fuses so that
the consumption of electricity can be recorded
people residing in the house will not have an electric shock if they touch a live wire
the total current drawn from the mains can be limited
the voltage supply can be stabilized
it serves as a standby supply when there is a power failure
Correct answer is C
No explanation has been provided for this answer.
commutators
transistors
valves and diodes
rectifiers
transformers
Correct answer is E
No explanation has been provided for this answer.
4800 cal
6000 cal
2400J
240k cal
6000J
Correct answer is E
Heat energy = Elect. energy = Ivt
= 5 x 6 x 200
= 6,000J
Why is it impossible for the lines of force of an electric field to cross one another?
like charges repel each other
a charged particle is deflected by an eletric field
like charges are arranged on the same line of force
a positively charged particle can travel in only one direction at any time
none of these is correct
Correct answer is D
No explanation has been provided for this answer.