A total resistance of 3.16 2 is to be produced by connecting an unknown resistance to a 12.34 resistance. (a) What must be the value of the unknown resistance, and (b) should it be connected in series or in parallel? (a) Number MI Units (b)

Power P0 = I0 V0 is delivered to a resistor of resistance R0. If the resistance is doubled (Rnew = 2R0) while the voltage is adjusted such that the current is constant, what are the ratios (a) Pnew/P0 and (b) Vnew/V0? If, instead, the resistance is held constant while Pnew = 2P0, what are the ratios (c) Vnew/V0, and (d) Inew/I0?

Consider the circuit below. The battery has an emf of = 30.00 V and an internal resistance of r = 1,00 . (a) Find the equivalent resistance of the circuit and the current out of the battery. (b) Find the current through each resistor, (c) Find die potential drop across each resistor, (d) Find the power dissipated by each resistor, (e) Find the total power supplied by the batteries.

A total resistance of 3.13 is to be produced by connecting an unknown resistance to a 12.13 2 resistance. (a) What must be the value of the unknown resistance, and (b) should it be connected in series or in parallel? (a) Number (b) i Units