Lesson 14 Do Now

What is Ohm's Law?

In a series circuit, the total resistance is:

• The sum of the reciprocals of individual resistances

• The sum of individual resistances

• The product of individual resistances

• The difference of individual resistances

In a parallel circuit, the total resistance is given by:

If the current through a resistor is 2 A and the resistance is 5 Ω, what is the voltage across the resistor?

• 10 V

• 5 V

• 2 V

• 1 V

What is the formula for power in terms of voltage and current?

In a series circuit with resistors of 2 Ω, 3 Ω, and 5 Ω, what is the total resistance?

• 10 Ω

• 5 Ω

• 3 Ω

• 2 Ω

In a parallel circuit with resistors of 4 Ω and 6 Ω, what is the total resistance?

• 10 Ω

• 2.4 Ω

• 5 Ω

• 1.5 Ω

If a device uses 60 W of power and operates at 12 V, what is the current flowing through it?

• 5 A

• 10 A

• 12 A

• 0.2 A

In a series circuit, if the voltage across the entire circuit is 24 V and there are three resistors of equal resistance, what is the voltage across each resistor?

• 8 V

• 12 V

• 24 V

• 6 V

In a parallel circuit, if the total current is 9 A and there are three branches with equal resistance, what is the current through each branch?

• 3 A

• 9 A

• 27 A

• 1 A