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Standard XII

Physics

COE in SHM

How much work...

Question

How much work would be done by the electric field if Q = 20 C were

moved from A (8 V) to B (3.5 V)?

– 90 J

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– 80 J

No worries! We‘ve got your back. Try BYJU‘S free classes today!

– 70 J

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– 60 J

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Solution

The correct option is C
– 70 J

Given:

Q = 20 C

dC = 8 V - 4.5 V = 3.5 V

W = -Q dV

W = - (20 × 3.5)

W = -70 J

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How much work would be done by the electric field if Q = 20 C were moved from A (8 V) to B (3.5 V)?

The correct option is C – 70 J Given: Q = 20 C dC = 8 V - 4.5 V = 3.5 V W = -Q dV W = - (20 × 3.5) W = -70 J

How much work would be done by the electric field if Q = 20 C were

moved from A (8 V) to B (3.5 V)?

The correct option is C
– 70 J

Given:

Q = 20 C

dC = 8 V - 4.5 V = 3.5 V

W = -Q dV

W = - (20 × 3.5)

W = -70 J