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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
- The e.m.f. of a battery is 2 V and its internal resistance is 0.5 Ω. The maximum
- The friction of the air causes a vertical retardation equal to 10%
- The escape velocity of a body on an imaginary planet which is thrice the radius
- The wheel of a car is rotating at the rate of 1200 rev/min. On pressing
- A wire of length 1 m is placed in a uniform magnetic field of 1.5 tesla at an angle
Topics: Electrostatics (146)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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