TS EAMCET · Physics · Magnetic Properties of Matter
A boy is playing with the empty rim of a cycle wheel of radius \(40 \mathrm{~cm}\) by rolling it along a horizontal road towards north with angular speed of \(20 \mathrm{rad} \mathrm{s}^{-1}\). Considering the effect of magnetic field of earth, the e.m.f induced in the rim is (Horizontal component of earth's magnetic field \(=0.26 \mathrm{G}\) )
- A Zero
- B \(2 \mu \mathrm{V}\)
- C \(2.4 \mathrm{mV}\)
- D \(3 \mathrm{~V}\)
Answer & Solution
Correct Answer
(A) Zero
Step-by-step Solution
Detailed explanation
Radius, \(\mathrm{R}=40 \mathrm{~cm}=0.4 \mathrm{~m}\) Angular speed, \(\omega=20 \mathrm{rad} / \mathrm{s}\) Horizontal component of Earth magnetic field…
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