Answer: C. 25.7 V
A 220 resistor dissipates 3 W. The voltage is 25.7 V.
Solution
Power consumption in a resistor is
P=V2/R
Given resistor is 220 Ω, power consumption is 3 W.
V2=P×R
V=√P×R
V=√3×220
V=25.7 V
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A 220 Ω resistor dissipates 3 W. The voltage is-
Answer: C. 25.7 V
Solution
Power consumption in a resistor is
P=V2/R
Given resistor is 220 Ω, power consumption is 3 W.
V2=P×R
V=√P×R
V=√3×220
V=25.7 V
☛ Related Questions:
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