Can someone help me please? 1) What happens to charge if the current in a circuit doubles?
2) With the current doubled, what happens to the time needed for the same total amount of charge to flow?
3) The current in a circuit is switched on for twice as long. What happens to the total charge that flows?

(1) The current is directly proportional to the voltage and inversely proportional to the resistance. ... So doubling or tripling the resistance will cause the current to be one-half or one-third the original value.

(2) Time will be decreased. The charges are moving faster! Because numbers of charge are fixed by the size of battery.

(3) V=I*R

V=I*RV- potential difference across the resistance.

V=I*RV- potential difference across the resistance.1- current passing through the resistance.

Thus, if the potential difference across the resistor is doubled and the resistance of the resistor is halved. The current passing through the resistor becomes 4 times the initial current.

Explanation:

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