The Illustration Is a Schematic Diagram of a Resistor Connected $P = \frac { E ^ { 2 } } { R }$

question 308

Multiple Choice

The illustration is a schematic diagram of a resistor connected to a voltage source of 51 volts. As a result, the resistor dissipates power in the form of heat. The power P lost when a voltage E is placed across a resistance R (in ohms) is given by the formula $P = \frac { E ^ { 2 } } { R }$ . If P is 4.5 watts and E is 51 volts, find R .

• A) 608 ohms
• B) 538 ohms
• C) 588 ohms
• D) 578 ohms
• E) 558 ohms

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