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Consider Experiment II in Section 6.2. ...

Consider Experiment II in Section 6.2.
a. What would you do to obtain a large deflection of the galvanometer?
b. How would you demonstrate the presence of an induced current in the absence of a galvanometer?

Text Solution

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a. To obtain a large deflection, one or more of the following steps can be taken:
(i) Use a rod made of soft iron inside the coil `C_(2)` (ii) Connect the coil to a powerful battery, and (iii) Move the arrangement rapidly towards the test coil `C_(1)`.
b. Replace the galvanometer by a small bulb. The relative motion between the two coils will cause the bulb to glow and thus demonstrate the presence of an induced current.
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