Characteristics of Parallel & Series Circuits
Total Resistance in Parallel & Series Circuits
Current in Parallel & Series Circuits
Power Dissipated in Parallel & Series Circuits
Electric Circuits
100
Voltage is constant
Parallel Circuits
100
A parallel circuit has a 7.5v potential difference and 3 resistors having 10-ohm, 10-ohm and 5.0-ohm resistance. What is the overall resistance in the circuit?
2.5 Ohms
100
In a series circuit, if one resistor burns out, what happens to the current in the circuit?
The current stops completely
100
A 20V battery is connected to resistors of 20Ω and 20Ω in parallel. Find the total resistance and power dissipated in the circuit.
40 W
100
Material containing electrons or charged ions that can move easily through it.
Conductor
200
The current adds I=I 1+I 2+I 3+….
Parallel Circuit
200
If the voltage across a resistor is 10 V and the current is 2 Amps, what is the resistance?
5 Ohms
200
In a series circuit, if the total voltage is 24 V and the resistors are 8 ohms and 4 ohms, what is the current?
2.0 A
200
In a series circuit, the total resistance is 12Ω and the voltage supply is 24V. What is the power dissipated in the circuit?
48 W
200
Material in which electrons cannot move easily.
Insulator
300
Resistance adds RT=R1+R2+R3+….
Series Cuircuits
300
In a parallel circuit, a 10V battery is connected to two resistors: 5Ω and 5Ω. What is the total resistance and the power consumed by the circuit? I = V/R P = IV
2.5-ohm, 4-amps, 40-watts
300
In the water pipe analogy, what does the pump that forces water through the pipe represent in an electric circuit?
Battery or power source.
300
The current for a series circuit is 2A and the total resistance is 10Ω. What is the power dissipated in the circuit?
40 W
300
All of these are electrical insulators.
Wood, glass, rubber, ceramic and oil
400
Only one path (electron has no choices, must go through all components)
Series Circuits
400
A heating coil has a resistance of 4.0 Ω and operates on 120 V. What is the current in the coil while it is operating?
30 Amp
400
If the total resistance in a circuit is 5 ohms and the total voltage is 15 V, what is the current?
3 A
400
In a parallel circuit with two resistors of 6 Ω and 6 Ω, and a 12 V battery, what is the total power consumed by the circuit?
48 W
400
All of these are conductors.
Silver, copper, gold, steel and salt water.
500
Resistance reciprocals add to give the reciprocal.
Parallel Circuits
500
Determine the total resistance if you have 2 heaters that are connected in parallel. The voltage source is 120v and each heater is 1200w.
120v/20a = 6-ohms
500
An electric heater with 50-Ω heat element is powered by a 200-V wall outlet. The current flowing through kettle is
4 A
500
If a 10 V battery is connected to a 5 Ω resistor in a series circuit, what is the power dissipated by the resistor?
20 W
500
Which type of circuit would you choose if you want to ensure that if one component fails, the other components continue to operate?
Parallel Circuits