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.
Lenz’s law of electromagnetic induction states that
a force is exerted on a current carrying conductor in a magnetic field
the induced current in a conductor is in such a direction as to oppose the change producing it
the magnitude of the induced electromotive force in a circuit is proportional to the rate of change of the number of lines of force linking the circuit
the magnitude of the induced electromotive force is proportional to the current producing the magnetic flux
whenever there is a change in the magnetic flux linked with the circuit, an electromotive is induced
Correct answer is B
No explanation has been provided for this answer.
I only
II only
I and II only
I and III only
I,II and III
Correct answer is D
No explanation has been provided for this answer.
I only
II only
III only
I and II only
II and III only
Correct answer is A
No explanation has been provided for this answer.
\(\frac{u}{v}\)
\(\frac{mu}{2}\)
u
2u
\(\frac{u}{m}\)
Correct answer is A
No explanation has been provided for this answer.
\(\sqrt{2GM}\) รท R
\(\frac{\sqrt{2GM}}{R}\)
\(\frac{\sqrt{2G}}{MR}\)
\(\sqrt{2GMR}\)
\(\frac{\sqrt{R}}{2GM}\)
Correct answer is B
No explanation has been provided for this answer.