Electrical Properties - Wires

A longer wire will have __________ resistance than a shorter wire.

• lower

• higher

• the same

• no

A wider wire has _______ resistance because it allows more space for electrons to flow.

• higher

• lower

• the same

• no

___________ Law relates voltage, current, and resistance in a circuit.

• Newton's

• Ohm's

• Coulomb's

• Faraday's

Increasing the width of a wire __________ the resistance and __________ the current.

• increases, decreases

• decreases, increases

• increases, increases

• decreases, decreases

How does increasing the length of a wire affect its electrical resistance?

• It decreases the resistance

• It increases the resistance

• It has no effect on resistance

What happens to electrical current when a wire's length is increased?

• The current increases

• The current remains constant

• The current decreases

• The current becomes unpredictable

Which statement best describes the relationship between wire width and resistance?

• Wider wires have higher resistance

• Wire width has no effect on resistance

• Wider wires have lower resistance

• The relationship is unpredictable

According to Ohm's Law, current is:

• Directly proportional to both voltage and resistance

• Inversely proportional to both voltage and resistance

• Directly proportional to voltage and inversely proportional to resistance

• Inversely proportional to voltage and directly proportional to resistance

Why does a wider wire provide less resistance?

• Because electrons move faster in wider wires

• Because electrons have more space to flow through

• Because wider wires are always shorter

• Because wider wires generate more heat

What analogy is used in the text to explain wire width's effect on current flow?

• A water pipe system

• A train track

• A wide road versus a narrow road

• A telephone line