The figure shows the equipotential contours due to three point charges, labelled

Question

The figure shows the equipotential contours due to three point charges, labelled in volts.

Select True or False.

i) -118.1 J of work is done to move a charge of 1 coulomb from d to c along the contour.

ii) Two of the charges are negative and one is positive.

iii) The electric field at e is directed normal to the 221.7 V contour and towards the 312.1 V contour.

iv) A charge released from rest on one of these contours will move along the contour.

v) The potential at a is greater than the potential at b.

Explanation / Answer

(i) False, both c and d line on same equipotential line.So, no work will be done.

(ii) False, two charges are positive and one charge is negetive.

(iii) False, One moving along the electric field, potential decreses.and it the figure it is increasing. so, electric feild is directed away from 312.1 v contour.

(iv)False, the charge will move towards the other contour such that its potential energy decreses.

(v) False, Va<Vb

(vi)False, of the potential of closest contour of both, the (0,0) has higher potential.

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.