Circuits

How are the resistors connected?

• In parallel

• In series

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

How do you calculate the equivalent (total) resistance of a parallel circuit? (Select all that apply)

• The reciprocal of the equivalent resistance is equal to the sum of the reciprocals of the resistance of the individual resistors.

• Add the resistances of the individual resistors together.

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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

• 3 Ω → 0.75 A; 6 Ω → 0.75 A

A 3 Ω resistor is connected in series to a 6 Ω resistor and a 12-V battery. What is the voltage drop across each resistor?

• 3 Ω → 2 V; 6 Ω → 10 V

• 3 Ω → 4 V; 6 Ω → 8 V

• 3 Ω → 2.67 V; 6 Ω → 2.67 V

• 3 Ω → 18 V; 6 Ω → 36 V

• 3 Ω → 2.25 V; 6 Ω → 4.5 V

A 3 Ω resistor is connected in series to a 6 Ω resistor and a 12-V battery. What is the power dissipated by each resistor?

• 3 Ω → 1.33 W; 6 Ω → 6.67 W

• 3 Ω → 5.33 W; 6 Ω → 10.67 W

• 3 Ω → 2.59 W; 6 Ω → 2.29 W

• 3 Ω → 12 W; 6 Ω → 48 W

• 3 Ω → 1.6875 W; 6 Ω → 3.375 W

Resistors with values of 4 Ω and 6 Ω are connected in parallel to one another and the combination is connected to a 36 V battery. What is the voltage drop across each resistor?

• 4 Ω → 12 V; 6 Ω → 24 V

• 4 Ω → 14.4 V; 6 Ω → 21.6 V

• 4 Ω → 18 V; 6 Ω → 18 V

• 4 Ω → 36 V; 6 Ω → 36 V

• 4 Ω → 342.8 V; 6 Ω → 514.2 V

Resistors with values of 4 Ω and 6 Ω are connected in parallel to one another and the combination is connected to a 36 V battery. What is the current in each resistor?

• 4 Ω → 3 A; 6 Ω → 4 A

• 4 Ω → 3.6 A; 6 Ω → 3.6 A

• 4 Ω → 15 A; 6 Ω → 15 A

• 4 Ω → 9 A; 6 Ω → 6 A

• 4 Ω → 85.7 A; 6 Ω → 42.85 A

Resistors with values of 4 Ω and 6 Ω are connected in parallel to one another and the combination is connected to a 36 V battery. What is the power dissipated by each resistor?

• 4 Ω → 36 W; 6 Ω → 96 W

• 4 Ω → 51.84 W; 6 Ω → 77.76 W

• 4 Ω → 270 W; 6 Ω → 270 W

• 4 Ω → 324 W; 6 Ω → 216 W

• 4 Ω → 144 W; 6 Ω → 216 W

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

Where should a voltmeter 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