CIE IGCSE Electricity and D.C. Circuits (Core & Extended)

Resistivity of a wire depends on

• length.

• material

• cross section area.

• all of the above

A circuit contains two un-equal resistances in parallel have

• current is same in both.

• large current flows in larger resistor.

• potential difference across each is same.

• smaller resistance has smaller conductivity

Property of a substance which offers opposition to flow of current through it is called

• energy.

• capacity

• resistance

• voltage

The total charge, Q flowing the area per unit time is defined as ?

• Current

• Capacitance

• Coulomb

• Potential difference

The amount of charge flow through silver wire with a current 3.0 A in 55 sec is

• 165 C

• 149 C

• 365 C

• 100 C

Which of the formula represent effective resistcance in parellel?

• 1/R_eff = 1/R₁ + 1/R₂ + ...

• R_eff = R₁ + R₂ + ...

• 1/R_eff = 1/R₁ = 1/R₂ = ...

• R_eff = R₁ = R₂ = ...

A series circuit has ____ path(s) that the electric current can take. 

• One
• Two 
• Three 
• Four

In a parallel circuit, if one connection is broken, all of the connections stop working.

• True
• False

Voltage Across 3 KΩ?

• 6 V
• 3 V
• 2 V
• 1 V

• Circuit X is brighter than circuit Y
• Circuit Y is brighter than circuit X
• Both circuits have the same brightness
• Neither circuit will light the bulbs

Tags

NGSS.MS-PS2-3