To understand how to compute power dissipation in a resistive circuit. (Figure 1)The circuit in the diagram consists of a battery with EMF, a resistor with resistance R, an ammeter, and a voltmeter. The voltmeter and the ammeter (labeled V and A) can be considered ideal; that is, their resistances are infinity and zero, respectively. The current in the resistor is I, and the voltage across it is V The internal resistance of the battery rint is not zero. figure
A) What is the ammeter Reading I? Express your answer in terms ofE,R, andrint.
B) What is the voltmeter reading V? Express your answer in terms ofE,R, andrint.
C) What is the power PR dissipated in the resistor? Express your answer in terms of I and V.
D) What is the total power Ptotal dissipated in the resistive elements of the circuit? Express your answer in terms of one or more of the following variables: E, rint, and R.
