To determine the terminal voltage across the cell in the given circuit, we start by calculating the current
(i) flowing through the circuit. The formula for the current is:
i=‌| ‌ Voltage ‌ |
| ‌ Resistance ‌ |
=‌=‌ANext, we calculate the terminal voltage using the formula for terminal voltage, which accounts for the internal resistance of the cell:
Terminal voltage
=emf−i×r where: emf is the electromotive force of the cell ( 2 V in this case),
i is the current calculated above
(‌A),
r is the internal resistance of the cell (
0.1Ω ).
Substituting these values into the formula:
Terminal voltage
=2−(‌×0.1)=2−0.05=1.95VTherefore, the terminal voltage across the cell is 1.95 V .