$\"\"$

Observe the given graph :

There appears to be a jump discontinuity at $\"\"$ .

Therefore, the graph is discontinuous at $\"\"$ .

The current is $\"\"$ for $\"\"$ and $\"\"$ for $\"\"$ .

Therefore, it appears that the power supply was turned on at $\"\"$ .

From the graph, it appears $\"\"$ .

Therefore, the current in the circuit would be $\"\"$ .

$\"\"$

a. $\"\"$ .

b. When $\"\"$ .

c. $\"\"$ .