revision quiz 2

In a series circuit, the total resistance is equal to

• Sum of the reciprocals of individual resistances

• Sum of the individual resistances

• Product of the resistances divided by their sum

• The smallest resistance

In a parallel circuit, the total resistance is equal to

• Sum of the resistances

• Reciprocal of the sum of the reciprocals of individual resistances

• Difference of the resistances

• Sum of individual resistances divided by their product

The formula for electric power (P) is

• P = W/t

• P = Vt

• P = It

• All of the above

Which of the following is the formula for kinetic energy?

• KE = mgh

• KE = 1/2 mv²

• KE = 1/2 mv

• KE = Fd

The formula for potential energy is

• PE = mgh

• PE = 1/2 mv²

• PE = VIt

• PE = 1/2 kx²

The unit of work is

• Joule

• Watt

• Newton

• Volt

The unit of power is

• Joule

• Watt

• Newton

• Volt

The unit of resistivity is

• Ohm meter

• Watt

• Newton

• Coulomb

The unit of current is

• Newton

• Ampere

• Coulomb

• Ohm

The formula for electric current (I) is

• I = V/R

• I = VR

• I = R/V

• I = V²R