A straight conductor AB lies along the axis of a hollow metal cylinder L, which is connected to earth through a conductor C. A quantity of charge will flow through C :

if a current beings to flow through AB

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if the current through AB is reversed

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if AB is removed, and a beam of electrons flows in its place

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if AB is removed, and a beam of protons flows in its place

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Solution

The correct options are
C if AB is removed, and a beam of protons flows in its place
D if AB is removed, and a beam of electrons flows in its place
When current flows through the conductor AB, it remains electrically neutral. Therefore, no charges are induced by it in the cylinder. A beam of electrons or protons has a net negative or positive charge. They will induce bound and free charges on L. The free charges will flow through C to/from the earth.

Hence, both options C and D are correct.

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Similar questions

A B

A

B

Find the electric current that flows through a conductor if a charge of $0.8 C$ flows through it in $4 s e c o n d s$ .

5 A

2 s .

1.6 \times 10^{- 19}

6.25 \times 10^{16}

(e = 1.6 \times 10^{- 19} C)

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