Answer:
8 V
Explanation:
V= IR
V = 4×2
V= 8 V
The answer is the ohms × current
Voltage is an electrical difference of potential across the circuit. The voltage of the bulb is 8V with a current of 2 A and a resistance of 4 ohms.
Ohms law gives the relation between the current (I) in Amperes, voltage (V) in volts, and resistance (R) in ohms. The formula to calculate voltage is given as,
[tex]\rm V = I \times R[/tex]
Given,
Current (I) = 2 Ampere
Resistance (R) = 4 ohms
Substituting values in the equation to calculate voltage as:
[tex]\begin{aligned} \rm V &= \rm I \times R\\\\&= 2 \times 4 \\\\&= 8\end{aligned}[/tex]
Therefore, 8 V is the voltage developed across the bulb with 4-ohm resistance.
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