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

Question

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

Quizplus · Accepted Answer

The Answer of 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

The Illustration Is a Schematic Diagram of a Resistor Connected P=E2RP = \frac { E ^ { 2 } } { R }P=RE2​

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