Consider the three circuits shown above. All the resistors and all the batteries
ID: 1443326 • 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 total power dissipated in circuit C is twice the total power dissipated in circuit B. The power dissipated in circuit A is twice the 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
1) False in circuit A I=V/R, in cirucit B I=V2R
2) False. In B P=V2/2R, in C) P=V2/(R/2), thus ratio is 4.
3) True, following 1) 2) given the equivalent resistance in B) is twice those in A)
4)False. In C they are parallel connected, voltage is the same