Dc theory test

A coulomb of electrons moving past a point in one second is equal to   ?  .

• 1 A of current flow

• 1 Ω of resistance

• 1 V of electrical potential

• 1 W of power consumed

Current flow in a circuit is analogous to   ?  .

• the inline pump returning the water flow to the tank

• the restriction of the pipes on the flow of water

• the water flow through the pipes

• the water tank supplying the source of energy for the water to flow

When measuring the resistance of a component,   ?  

• power needs to be off, and the component should be removed from the circuit

• power needs to be off, and the meter needs to be placed in series with the component

• power needs to be on, and the meter needs to be placed in parallel with the component

• power needs to be on, and the meter needs to be placed in series with the component

If a circuit has a total resistance of 54 ohms and a current of 4.2 amperes, what is the circuit voltage?

The   ?   each component is the same in a series circuit.

• current through

• power consumed by

• resistance of

• voltage dropped across

What is 500 kV expressed in base units?

The voltage dropped across each component in a series circuit is   ?   to its resistance.

• directly proportional

• equal

• exponentially proportional

• inversely proportional

Determine the total voltage applied to the circuit, given: R₁ = 12 Ω, R₂ = 12 Ω, R₃ = 24 Ω, and I_T = 3 A.

Determine the current through R₃ in the circuit, given: I₁ = 152 mA, I₂ = 364 mA, I_T = 1.02 A, and E_T = 9.6 V.

What is the equivalent resistance of the circuit shown?

Given: R₁ = 15 Ω, R₂ = 20 Ω, R₃ = 25 Ω, R₄ = 30 Ω, R₅ = 35 Ω, and R₆ = 40 Ω.

• 31.5

• 37.6

• 46.5

• 51.1