Answer: To calculate the quantities related to the given electrical circuit, we can use the formulas related to charge, energy, and power.
a) Charge (Q):
The charge can be calculated using the formula: Q = I * t, where I is the current and t is the time.
Given:
Current (I) = 3 ohms (A)
Time (t) = 25 seconds
Q = 3 A * 25 s = 75 Coulombs
b) Energy (E):
The energy can be calculated using the formula: E = V * Q, where V is the voltage and Q is the charge.
Given:
Voltage (V) = 13 V
Charge (Q) = 75 C
E = 13 V * 75 C = 975 Joules
c) Energy transferred in 15 seconds:
To calculate the energy transferred in 15 seconds, we need to find the power first.
Power (P) can be calculated using the formula: P = V * I, where V is the voltage and I is the current.
Given:
Voltage (V) = 13 V
Current (I) = 3 A
P = 13 V * 3 A = 39 Watts
Now, we can calculate the energy transferred in 15 seconds using the formula: E = P * t, where P is the power and t is the time.
Given:
Power (P) = 39 W
Time (t) = 15 s
E = 39 W * 15 s = 585 Joules
Therefore, the answers are:
a) Charge = 75 Coulombs
b) Energy = 975 Joules
c) Energy transferred in 15 seconds = 585 Joules
Step-by-step explanation: