Consider the three circuits shown above. All the resistors and all the batteries
ID: 2280716 • Letter: C
Question
Consider the three circuits shown above. All the resistors and all the batteries are identical. (For each statement select T True, F False). The current through a resistor is the same in circuits A and B. The power dissipated in circuit A is twice the power dissipated in circuit B. The total power dissipated in circuit C is twice the total power dissipated in circuit B. The voltage across a single resistor in circuit C is twice the voltage across a single resistor in circuit B. The current through a resistor is the same in circuits A and C.Explanation / Answer
A) False;
V = I R, voltage is same in both the circuit but the total resistance is different ( R in A and 2R in B)
B)True:
power P = V^2 / R, voltage is same in both , total resistance in A is R and in B is 2R.
C)False;
P = V^2 / R, voltage is same in both , total resistance in c is R/2 and in B is 2R.
D)True;
voltage across single resistor in B is V/2 and in C it is V.
E)True;
in both the cases voltage across the resistor is same, V= I R