3 resistors, R1, R2 and R3 are attached in parallel across a 6V cell with resistances 3, 4 and 5 Ohms respectively. Calculate the current across each resistor.
First off draw the circuit. The voltage across each resistor is equal (i.e. 6V). From here we just have to use Ohm's law (V = I x R) to calculate the currents across each resistor. This gives us:
R1; 6V = I x 3 Ohms; I = 2A
R1; 6V = I x 4 Ohms; I = 1.5A
R1; 6V = I x 5 Ohms; I = 1.2A
MP
Related Physics A Level answers
All answers ▸The mass of the Earth is 6.0x10^24 kg and its radius is 6.4x10^6m, calculate the orbital speed of the moon around the earth, the orbit of the moon is a circle of approximate radius of 60R where R is the radius of the earth and a mass m.
Explain how and why the diffraction pattern of electrons passing through a slit depends on their momentum.
What is a vector quantity
How am I going to remember all of the particles I need to know? (A-level Physics)