Pictured on the right are two point charges Q1 = -90.0 × 10-6 C and Q2 = 30.0 ×

Question

Pictured on the right are two point charges Q1 = -90.0 × 10-6 C and Q2 = 30.0 × 10-6 C separated by a distance D = 0.100 m, as shown. Calculate the potential at point A positioned d = 0.0400 m to the left of Q1.

Question 7 of 12 Incor Incorrect Incorrect Map b Map sapling learning Pictured on the right are two point charges Q!--90.0 x10° C and Q2 = 30.0 x 10° C separated by a distance D = 0.100 m, as shown. Calculate the potential at point A positioned d = 0.0400 m to the left of Q1. Q1 Q2 Number -1.75 × 106 | v | -- There is a hint available! View the hint by clicking on the bottom divider bar. Click on the divider bar again to hide the hint. Close Previous 3 Give Up & View Solution O Check Answer Next Exit Hint

Explanation / Answer

Net torque at A is given as

V = V1 + V2 = k Q1/d + k Q2 /(d + D)

V = (9 x 109) ((- 90 x 10-6/0.04) + (30 x 10-6)/(0.04 + 0.1))

V = - 1.83 x 107 Volts

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