3. Four resistor and a battery of negligible internal resistance are assembled to make the circuit in the figure. Let ɛ = 4.5 V, R1 = 2 0, R2 = 3 0, R3 = 9 0, and R4 = 1 0. Find (a) the equivalent resistance of the network; (b) the current in each resistor. R1 R2 R4
3. Four resistor and a battery of negligible internal resistance are assembled to make the circuit in the figure. Let ɛ = 4.5 V, R1 = 2 0, R2 = 3 0, R3 = 9 0, and R4 = 1 0. Find (a) the equivalent resistance of the network; (b) the current in each resistor. R1 R2 R4
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Please provide complete solution and easy to understand, use kirchoffs law if needed, thanks. Answer only number 3 and 4
Transcribed Image Text:1. A 3-0 light bulb and a 6-0 light bulb are connected in series with a 6-volt battery. a) What is the current
in each bulb? b) What is the voltage across each bulb? c) What is the power dissipated by each bulb?
d) What is the total dissipated by the wire?
2. Four identical resistors connected in parallel have an equivalent resistance of 2 ohms. What would the
total resistance be if these resistors are then connected in series?
3. Four resistor and a battery of negligible internal resistance are assembled to make the circuit in the
figure. Let ɛ = 4.5 V, R1 = 2 N, R2 = 3 N, R3 = 9 N, and R4 = 10. Find (a) the equivalent resistance of the
network; (b) the current in each resistor.
R1
R2
R3
4. Five resistors are connected in series-parallel combination as shown. Find the following: a) the total
resistance of the circuit. b) The total current in the circuit, c) the current in the 100-0 resistor, d) the
voltage drop across the 80-0 resistor.
40 N
60 0
80 0
1200
1000
V1 = 20 v
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