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.
In a p-type semiconductor, the?
number of holes are equal to the number of electrons
electrical resistivity increases
electrons are the majority charge carriers
holes are the majority charge carriers
Correct answer is D
Properties of p type semiconductor
radioactivity
nuclear fusion
nuclear fission
chain reaction
Correct answer is B
No explanation has been provided for this answer.
1
2
3
5
Correct answer is A
No explanation has been provided for this answer.
What determines the polarity at the ends of an electromagnet? The
magnitude of the current passing through the wire
material of the core of the magnet
material of the coil
direction of current in the wire
Correct answer is D
No explanation has been provided for this answer.
Which of the following statements is not correct about steel and soft iron?
steel is more magnetized than soft iron
permanent magnets are usually made of steel
soft iron is more readily magnetized than steel
soft iron more readily loses its magnetism than steel
Correct answer is A
No explanation has been provided for this answer.