Question

According to ohms law if you don't change the value of the resistor and you double the voltage in a circuit the amount of current flowing will _______.
A. Be multiplied by the amount of resistance
B. Remain the same also
C. Divide it in half
D. Double

Answer 1

Answer: D (doubled)

According to ohm's law

                      I = V/R ,

                      V = IR ;   R = constant and V is doubled

  From the equation

                      V is directly proportional to the current, and it is given that R is constant ;

                    2V = 2I. R    since R = constant

                      Hence I is doubled.