Wednesday

January 28, 2015

January 28, 2015

Posted by **Billy** on Sunday, April 14, 2013 at 9:19pm.

(a) What is the current in the circuit when four lamps are turned on?

(b) What is the current in the circuit when all lamps are on?

(c) What is the current in the circuit when six lamps and the heater are operating?

- Physics -
**Henry**, Wednesday, April 17, 2013 at 4:51pmR(Lp) = 270 Ohms each?

R(Htr) = 18 Ohms?

a. I = 4 * (120/270) = 1.78A.

b. I = 6 * (120/270) = 2.67A.

c. I = 2.67 + (120/18) = 9.34A

.

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