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March 30, 2015

March 30, 2015

Posted by **Maria** on Thursday, April 28, 2011 at 1:28am.

What is the equivalent resistance of the

circuit? Answer in units of ohm.

What is the current in the circuit?

Answer in units of A.

What is the voltage drop across the first

lamp?

Answer in units of V.

What is the power dissipated in the first

lamp?

Answer in units of W.

- Physics -
**drwls**, Thursday, April 28, 2011 at 1:33amResistors in series add. Equivalent resistance is 37 + 59 = 96 ohms.

Use ohm's law to get the current that goes through through both resistors.

The first resistor gets 37/96 of the 43 V applied voltage. The second resistor gets the rest.

resistor power dissipation = I^2 R

- Physics -
**Maria**, Thursday, April 28, 2011 at 1:51amI got the answer wrong. Is there any other ways you can explain this?

- Physics -
**drwls**, Thursday, April 28, 2011 at 5:01amShow us your work and someone will show you where you may have made mistakes

- Physics -
**mohamed**, Saturday, September 1, 2012 at 12:04pma =f/m

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