Final answer:
To calculate the charge moved through the circuit when a D cell is shorted with a 7A current for five seconds, multiply the current by the time to get 35 coulombs of charge.
Step-by-step explanation:
If you short out a D cell and draw a current of 7A for five seconds, the number of coulombs of charge that move through the circuit can be calculated using the relationship between current, charge, and time.
Since current (I) is the rate of flow of charge (Q), and it is measured in Amperes (A), where 1 A is equivalent to 1 Coulomb per second (1 C/s), you can determine the total charge that has flowed by multiplying the current by the time (t) the current was flowing.
The formula for this is: Q = I × t.
So, if I = 7 A and t = 5 s, then:
Q = 7 A × 5 s
= 35 C.
Therefore, 35 coulombs of charge have moved through the circuit.