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Calculating current flowing through a circuit and voltage drop?!

Daniel280599

Feb 2, 2015
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Feb 2, 2015
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My question is if the current going through the three lamps is 25mA EACH then what is the total current flowing through the circuit and and what is the voltage drop across the variable resistor. L Please could anyone show me how its done. Thanks.

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Arouse1973

Adam
Dec 18, 2013
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I think you can answer the first question yourself, think about the word EACH.
Adam
 

duke37

Jan 9, 2011
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The lamps look to be in parallel to me so adding would be the right thing to do.
What then would be the voltage across the 100Ω resistor?
 
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