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The electric potential V at any point (x,y,z) all in meters in space is given by V = 4x² volt. The electric field at the point (1,0,2) in V/m is
Options
(a) 8 along positive X-axis
(b) 16 along negative X-axis
(c) 16 along positive X-axis
(d) 8 along negative X-axis
Correct Answer:
8 along negative X-axis
Explanation:
E⃗ = – [dv/ dx i + dv/ dy j + dv/ dz k]
= -8 x i V/m
E⃗(1,0,2) = -8i V/m
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Topics: Electrostatics
(146)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A galvanometer having resistance of 50 Ω requires a current of 100μA to give full
- The maximum and minimum intensities of two sources is 4:1. The ratio of amplitude is
- The threshold frequency for a photosensitive metal is 3.3 x 10¹⁴ Hz.
- The rms current in an AC circuit is 2 A. If the wattless current be √3 A,
- A Zenor diode has a contact potential of 1 V in the absence of biasing. It undergoes
Topics: Electrostatics (146)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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