Four 10.0 ? resistors are connected in series with a 21.0 V battery. Find the fo

Question

Four 10.0 ? resistors are connected in series with a 21.0 V battery. Find the following.

equivalent resistance ? current in each resistor A Four 10.0 ? resistors are connected in series with a 21.0 V battery. Find the following. (a) the equivalent resistance of the circuit Your response differs from the correct answer by more than 10%. Double check your calculations. A (c) Repeat for the case in which all four resistors are connected in parallel across the battery. equivalent resistance ? current in each resistor A Your response differs from the correct answer by more than 10%. Double check your calculations. ? (b) the current in each resistor

Explanation / Answer

a.

10 x 5 = 50 ohms

b.

I = E/R = 21/50 = 0.42 amp. that flows through all the resistors

c.

in parallel, Req = 10/5 = 2 ohms

Current in each is 21/10 = 2.1 amps.

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