Deck 5: Parallel Dc Circuits

Question 1

Write the formula for the reciprocal method of calculating total resistance for any number of resistors in parallel.

Answer 1

RT = 1/(1/R1 + 1/R2 + 1/R3 + 1/R4)

Question 2

Series-parallel circuits are calculated with parallel rules only.

Answer 2

False

Question 3

In a parallel circuit, branches that are in parallel have different voltage drops across them.

Answer 3

False

Question 4

The first step in evaluating a(n) _______________ circuit is to determine the series parts and parallel parts.

Question 5

Explain the difference between constant current and constant voltage.

Question 6

In a parallel circuit, as branches are added, total current increases.

Question 7

Explain Kirchhoff's Current Law.

Question 8

Constant current sources supply constant current to a load rather than constant ____________.

Question 9

A parallel circuit is a current multiplier because current accumulates at each branch.

Question 10

In a parallel circuit, the voltage drop across a branch is equal to the __________ voltage of that branch.

Question 11

What happens to the current when resistance is added to a parallel circuit?

Question 12

Ohm's Law states that when voltage is held constant and __________ increases, then current decreases.

Question 13

In a parallel circuit, the total current is the sum of the branch currents.

Question 14

In a parallel circuit, the loads and resistors are connected in a manner such that there is more than one ______________ for current flow.

Question 15

Explain how branch current is calculated in a current divider circuit.