Resistors of 5 ohms and 10 ohms are connected in series with a battery supplying 3 volts. What is the total resistance ? And calculate the current in the circuit.
For the first part of the question we note that the resistors are in series, this means we can simply add together the resistance, giving a value of:
15 ohms
For the second part we use the equation V=IR,
substituting in the known voltage and calculated resistance:
3 = 15 * I
I = 3/15 = 0.2 Amps
AN
Related Physics GCSE answers
All answers ▸A 10kg cube of iron with length 5cm is resting on a table surface. Assuming the acceleration under gravity of the block is 9.81ms^(-2), what is the pressure on the table?
Compare the advantages and disadvantages of the two methods of generating electricity (figure 1 in answer):
why does applying the brakes of a car cause the temperature of the breaks to increase?
State 2 factors that affect the centripetal force for a object having a circular path.