Two parallel conducting plates are connected to a constant voltage source

PHYSICS · Single correct · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

17. Two parallel conducting plates are connected to a constant voltage source. The magnitude of the electric field between the plates is

2,000 \mathrm{~N} / \mathrm{C}

. If the voltage is doubled and the distance between the plates is reduced to

1 / 5

the original distance, the magnitude of the new electric field is (A)

800 \mathrm{~N} / \mathrm{C}

(B)

1,600 \mathrm{~N} / \mathrm{C}

(C)

2,400 \mathrm{~N} / \mathrm{C}

(D)

20,000 \mathrm{~N} / \mathrm{C}