**·**2014-05-03 06:00:42

5)

V_{B} - V_{A} = -∫E.dl

→ V_{A} - V_{B} = ∫E.dl

Since current is from A to B, V_{A} > V_{B}

→ ∫E.dl > 0

6)

Since there is a current in the path, there must be a resistor attached to the capacitor.

V_{A} - V_{B} = ∫E.dl

Potential difference across a capacitor is given by,

V = V_{0}(1 - e^{t/τ})

Now we don't know whether the capacitor is in steady state, transient state or 0+ state.

Hence V can be +ve or 0.

- Aditya Agarwal Thanks. But what is the significance of the current increasing in the second case?
- Akash Anand Excellent job Sourish ...keep it up...give your best this time :)

·0·Reply·2014-05-03 06:09:25