COMEDK · Physics · 20. Magnetic Properties of Matter
A tangent galvanometer has a reduction factor of \(1 \mathrm{~A}\) and it is placed with the plane of its coil perpendicular to the magnetic meridian. The deflection produced when a current of \(I A\) is passed through it is
- A \(60^{\circ}\)
- B \(45^{\circ}\)
- C \(30^{\circ}\)
- D None of these
Answer & Solution
Correct Answer
(B) \(45^{\circ}\)
Step-by-step Solution
Detailed explanation
The deflection in a tangent galvanometer is given by \(\tan \theta=\frac{I}{K}\) where, \(K=\) reduction factor Here, \(K=1 \mathrm{~A}, I=1 \mathrm{~A}\) \(\therefore \quad \tan \theta=\frac{1}{1}=1 \Rightarrow \theta=45^{\circ}\)
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