What is the composition of an atom?

What is the composition of an atom?

a. Protons and neutrons in the nucleus and electrons in the shell.
b. Electrons and neutrons in the nucleus and protons in the shell.
c. Electrons and nucleus in the neutron and protons in the shell.
d. Protons and electrons in the nucleus and neutrons in the shell.






Answer: A

A conductor's resistance is

A conductor's resistance is

a) directly proportional to its length
b) directly proportional to its diameter
c) inversely proportional to its length
d) not affected by the cross-sectional area
e) measured in micro-Newtons







Answer: A

Under normal circumstances, the heat produced by the electrical wires of a circuit is very small due to the

Under normal circumstances, the heat produced by the electrical wires of a circuit is very small due to the

a) large diameter of the conductor
b) low resistance of the conductor
c) long length of the conductor
d) insulation wrapped around
e) small diameter of the conductor




Answer: B

Most conductors tend to

Most conductors tend to

a) increase in resistance with increase in temperature
b) decrease in resistance with increase in temperature
c) shrink when heated
d) melt when voltage is applied
e) oscillate when voltage is applied

Answer: A

A conductor's resistance is

A conductor's resistance is

a) directly proportional to its cross-sectional area
b) directly proportional to its diameter
c) inversely proportional to its cross-sectional area
d) not affected by the cross-sectional area
e) measured in micro-Newtons






Answer: C

Current flow is inversely proportional to the

Current flow is inversely proportional to the

a) voltage
b) amperage
c) resistance
d) wattage
e) conductance

Answer: C