26104 Electrical Review

What is the total resistance of the circuit in the figure above? 

• 50 ohms
• 30 ohms
• 19 ohms
• 29 ohms

Given: A circuit has a voltage of 100 volts across five resistors in parallel (5, 14, 21, 25, and 100 ohms). The total current is _____. 

• 20.2 amps
• 25.3 amps
• 12.71 amps
• 36.9 amps

Which of the following is considered a voltage rise? 

• A motor
• A resister
• The source
• A diode

In a parallel circuit, the total line current must equal _____. 

• the branch current divided by the total resistance 
• the sum of the branch currents 
• the branch current divided by the number of resistors 
• zero

How many amps of current would flow through the circuit in the figure above? 

• 4.14
• 5.21
• 3.24
• 2

There are four resistors in a circuit with an applied voltage of 120V. The voltage drops across three resistors is 15V each. What is the voltage drop across the fourth resistor? 

• 75V
• 120V
• 15V
• 45V

Two resistances of 30 and 25 ohms are connected in parallel. In series with this combination is a 40-ohm resistance, and in parallel with this total combination is a 28-ohm resistance. Given a voltage of 1.28 volts, the total current flowing through the circuit is _____. 

• 60mA
• 70mA
• 95mA
• 55mA

The total voltage in a circuit with voltage drops of 15V, 25V, and 20V is _____. 

• 20V
• 180V
• 120V
• 60V

What is the total resistance of the circuit in the figure above? 

• 24.17 ohms 
• 70.41 ohms 
• 15.32 ohms 
• 120.12 ohms 

If R3 was removed from the circuit in the figure above, how many amps of current would flow through the circuit? 

• 12
• 15
• 5
• 4