Tuesday

April 21, 2015

April 21, 2015

Posted by **Betty** on Tuesday, October 25, 2011 at 7:50pm.

The maximum number of volts, E, that can be placed across a resistor is given by the formula E=sq root(PR), where P is the number of watts of piwer that the resistor can absorb and R is the resistance of the resistor in ohms. Solve this equation for R. Use the result to determine the resistance of a resistor if P is 1/2 watts and E is 60 volts.

- Algebra -
**Steve**, Wednesday, October 26, 2011 at 5:27amE = √PR

E^{2}= PR

R = E^{2}/P

R = 3600/0.5 = 7200 ohms

Physics - I need help. Resistor 1: Watts=? Current=? Resistance=520 Volts=? ...

science - A linear circuit is shown below in Figure 1. Figure 1 The elements in ...

Physics - Please check my answers: The voltage across a 10-ohm resistor carrying...

Physics help please! - Hi all. I posted earlier but I'm still stuck on part of ...

Physics circuit help please! - Hi all. I posted earlier but I'm still stuck on ...

physics - In this current of 12 volts, the voltmeter registers a voltage drop of...

College Algebra - Annual profit in thousands of dollars is given by the function...

Math - The power P delivered to a load by a current of i amperes through a ...

physics 102 - The output voltage of an AC generator is given by Δv = (180 V...

Physics - Suppose you had a circuit with three resistors in series and you ...