Combination of Resistors and Electrical Power

What is ohm?

• Measures electrical resistance

• Measure electricity

• Bob esponja

• Measues circuits

A tool that measures voltage, current, resistance, and continuity is called a:

• voltmeter
• resistor
• multimeter
• screwdriver

What is the total resistance of the three resistors in parallel with values of 2 ohms, 8 ohms, and 14 ohms?

• 1.44 ohms
• 2.24 ohms
• 2.32 ohms
• 2.65 ohms

What is the resistance of a light bulb that uses 15 watts of power when placed across a 15-volt battery?

• 1.5 ohms
• 15 ohms
• 50 ohms
• 150 ohms

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

• 19 ohms
• 29 ohms
• 30 ohms
• 50 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?

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

How are the resistors connected?

• In parallel

• In series

• Top and bottom are in parallel, right is in series

How are the resistors connected?

• In parallel

• In series

• Middle two are in parallel, right most is in series

A 3 Ω resistor is connected in series to a 6 Ω resistor and a 12-V battery. What is the current in each of the resistors?

• 3 Ω → 0.67 A; 6 Ω → 0.67 A

• 3 Ω → 1.33 A; 6 Ω → 1.33 A

• 3 Ω → 0.88 A; 6 Ω → 0.44 A

• 3 Ω → 6 A; 6 Ω → 6 A

Where should an ammeter be wired into a circuit? What type of resistance should it have?

• In parallel; high resistance

• In parallel; low resistance

• In series; high resistance

• In series; low resistance