An athlete runs at a velocity of 30 km/hr. towards east with a 3 meter rod. The horizontal component of the earth is 4 × 10 -5 weber/m². If he runs, keeping the rod (i) horizontal and (ii) vertical, the p.d. across the ends of the rod in both the cases, will be-
Text Solution
Verified by ExpertsThe correct answer is:
B
ε = B. v. l = 4 × 10 -5 × (30× 
) × 3
= 1 × 10 -3 volt
in horizontal case V = 0 
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