Published by:
CGP EDU Academic Team
Published on: September 12, 2026
The magnetic field B crossing normally a square metallic plate of area 4 m 2 is changing with time as shown in figure. The magnitude of induced emf in the plate during t = 2 s to t = 4 s, is_____mV.
Text Solution
Verified by ExpertsThe correct answer is:
8
(8)
From the graph, it can be seen that the value of the magnetic field at t = 2 s is 4 mT, whereas the magnetic field at t = 4 s is 8 mT. The formula to calculate the magnitude of the induced emf is given by
…
is the slope of the given graph.
Hence, the value of the induced emf can be calculated as follows:
= 8mV
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