What is the current in a circuit if the charge passing each point is 20 C in 40s?

What is the current in a circuit if the charge passing through each point is 20 C in 40 s?

In an L-C circuit, L = 0.75 H and C =18 muF , (a) At the instant when the current in the inductor is changing at a rate of 3.40 A /s , what is the charge on the capacitor? (b) When the charge on the capacitor is 4.2 xx 10^-4 C, what is the induced emf in the inductor?

In an L-C circuit, L = 0.75 H and C =18 muF , (a) At the instant when the current in the inductor is changing at a rate of 3.40 Ns , what is the charge on the capacitor? (b) When the charge on the capacitor is 4.2 xx 10^-4 C, what is the induced emf in the inductor?

In the circuit shown in figure-3.345 the capacitor of capacitance C is charged to a potential difference V. The current in the circuit just after the closing of switch S is :

What is the current in the 40 resistor when switch S_(1) is open and switch S_(2) is closed in the given circuit ?

A current of 4A flows around a circuit for 10s. How much charge flows past a point in the circuit in this time?