Question
The current sensitivity of a galvanometer is defined as:
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Answer
- Deflection per unit current.
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Following operations can be performed on a capacitor:
$X -$ connect the capacitor to a battery of emf $\epsilon.$
$Y -$ disconnect the battery.
$Z -$ reconnect the battery with polarity reversed.
$W -$ insert a dielectric slab in the capacitor.
→$X -$ connect the capacitor to a battery of emf $\epsilon.$
$Y -$ disconnect the battery.
$Z -$ reconnect the battery with polarity reversed.
$W -$ insert a dielectric slab in the capacitor.
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- The electric energy stored in the capacitor is greater after the action $\text{WXY}$ than after the action $\text{XYW}.$
- The electric field in the capacitor after the action $\text{XW}$ is the same as that after $W$.
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