Electric Circuits Answers

a series circuit consisting of three resistors having 40 ohms ,50 ohms and 20 ohms respectively is connected across a voltage source of 120V.find the current and potential difference across each resistor.

what happens to the capacitance of parallel plat capacitor when the size of plate increases and distance between them decreases ?

both potential difference and electromotive force are measured in volts what is the difference between them ?

The temperature at which the tungsten filament of a 12V and 36W lamp operates is
1730oC1730oC
. If the temperature coefficient of resistance of tungsten is
6×10−3/K6×10−3/K
, find the resistance of the lamp at a room temperature of
20oC20oC

10.00Ω10.00Ω

0.45Ω0.45Ω

0.39Ω0.39Ω

4.00Ω4.00Ω

We are working on Ohm's law right now and I have a problem that I just can't solve. It's that there are two 10 ohm resistors in a series, which is parallel to a 100 ohm resistor and the battery. I can get all of the resistances, the batteries current, and I know that the 100 ohm resistor would be 9 volts as that's what I was given for the battery. I'm trying to get the current for all the resistors, but it doesn't add up whenever I try it. I also need to find the voltage for the two 10 ohm resistors.

the spark of a man-made 10MV lightning had an energy output of 0.125MW.s. How many coulombs of charge followed

Four capacitore each of 2uF are connected in such a way that total capacitance is also 2uF show what combination? Give this value.