Question

Two resistors, A and B, are connected in parallel across a 7.0 V battery. The current through B is found to be 1.0 A. When the two resistors are connected in series to the 7.0 V battery, a voltmeter connected across resistor A measures a voltage of 3.8 V. Find the resistances A and B. R_A = Your response differs from the correct answer by more than 10%. Double check your calculations. ohm R_B = 6.57 Your response is within 10% of the correct value. This may be due to roundoff error, or you could have a mistake in your calculation. Carry out all intermediate results to at least four-digit accuracy to minimize roundoff error. ohm Consider the circuit shown in Figure P18.9. (R = 36.0 ohm.) (a) Find the current in the 36.0 ohm resistor. A (b) Find the potential difference between points a and b. V

Answer 1

A B A B 3.8 x4 .31AS A