For an ideal inductor, connected across a sinusoidal ac voltage source, state which one of the following quantity is zero:
(i) Instantaneous power is zero :
(ii) Average power over full cycle of the ac voltage source.

Explanation

To solve the question regarding the instantaneous power and average power in an ideal inductor connected to a sinusoidal AC voltage source, we will follow these steps:

### Step-by-Step Solution:

1. **Understand the Circuit**:
- We have an ideal inductor (L) connected to a sinusoidal AC voltage source, which can be represented as \( e(t) = E_0 \sin(\omega t) \).

2. **Determine the Current**:
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