ch 11 mc

Question 1

Which of the following is a unit of electrical
energy?
(a) watt
(b) kilowatt hour
(c) coulomb
(d) ohm

Answer 1

(b) kilowatt hour

Question 2

Electric potential difference is measured in
volts. Which of the following is equivalent
to 1 V?
(a) 1 I/C
(b) 1 J∙C
(c) 1 C/J
(d) 1 J/C

Answer 2

(d) 1 J/C

Question 3

What is resistance a measure of?
(a) the energy of electrons in a resistor
(b) the number of coulombs in a resistor
(c) the difficulty for electrons to flow through a
resistor
(d) the conventional current in a resistor

Answer 3

(c) the difficulty for electrons to flow through a resistor

Question 4

true or false

Electric potential is the measure of the amount of
electrical energy per coulomb of charge.

Answer 4

true

Question 5

true or false

Loads that are placed in series in a circuit all carry
the same current.

Answer 5

true

Question 6

true or false

Kirchhoff ’s current law (KCL) states that the current entering a junction is equal to the current exiting a junction in a circuit.

Answer 6

true

Question 7

An object is considered ‘positively charged’ if:

a) It has gained extra protons
b) It has gained extra electrons
c) It has gained extra neutrons
d) It is missing some of its electrons
e) It is missing some of its protons

Answer 7

d) It is missing some of its electrons

Question 8

Voltmeters need to be connected in:

Answer 8

parallel circuit

Question 9

true or false

In a circuit, according to CONVENTIONAL CURRENT rules, electricity flows from the negative terminal of the battery to the positive terminal of the battery.

Answer 9

false