Explain kinetic and gravitational potential energy, rules for conservation of energy and relationship between these quantities as well as apply the knowledge gained for useful purposes.
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Q 1/20
Score 0
Which statement best describes the flow of current in a series circuit?
30
Current increases as it passes through each component.
Current splits evenly between all components.
Current decreases as it passes through each component.
Current is the same at every point in the circuit.
Q 2/20
Score 0
What happens to the total resistance of a parallel circuit as more branches are added?
30
The total resistance becomes unpredictable.
The total resistance increases.
The total resistance decreases.
The total resistance stays the same.
20 questions
Q.
Which statement best describes the flow of current in a series circuit?
1
30 sec
SC9.E.1
Q.
What happens to the total resistance of a parallel circuit as more branches are added?
2
30 sec
Q.
Which of the following is a significant disadvantage of a series circuit?
3
30 sec
Q.
Which circuit type is commonly used for household wiring?
4
30 sec
Q.
What is the relationship between voltage and the brightness of identical light bulbs connected in a series circuit?
5
30 sec
Q.
How does the current in a parallel circuit behave compared to a series circuit with the same components?
6
30 sec
Q.
Which statement accurately describes voltage in a parallel circuit?
7
30 sec
Q.
Which type of circuit offers the most control over both voltage and current distribution?
8
30 sec
Q.
In a combination circuit, what determines the behaviour of a particular component?
9
30 sec
Q.
Why are parallel circuits preferred over series circuits in many applications?
10
30 sec
Q.
Three resistors with values of 5 ohms, 10 ohms, and 15 ohms are connected in series. What is the total resistance of the circuit?
11
30 sec
Q.
A parallel circuit has two branches with resistances of 4 ohms and 6 ohms respectively. What is the total resistance of the circuit?
12
30 sec
Q.
A 9-volt battery powers a series circuit with two resistors. The first resistor has a resistance of 3 ohms. If the current flowing through the circuit is 1.5 amperes, what is the resistance of the second resistor?
13
30 sec
Q.
A parallel circuit has three branches with equal resistances. If the total current flowing through the circuit is 6 amperes, what is the current flowing through each branch?
14
30 sec
Q.
Two resistors with values of 4 ohms and 12 ohms are connected in parallel. This parallel combination is then connected in series to a 2-ohm resistor. What is the total resistance of the circuit?
15
30 sec
Q.
A series circuit consists of a 12-volt battery and two light bulbs. If the voltage drop across the first bulb is 4 volts, what is the voltage drop across the second bulb?
16
30 sec
Q.
A parallel circuit has two branches. One branch has a resistance of 5 ohms and a current of 2 amperes. The other branch has a resistance of 10 ohms. What is the current flowing through the second branch?
17
30 sec
Q.
Three resistors with values of 2 ohms, 4 ohms, and 6 ohms are connected in parallel. This parallel combination is then connected in series to a 9-volt battery. What is the total current flowing through the circuit?
18
30 sec
Q.
A string of 20 identical Christmas lights is connected in series to a 120-volt power source. If the voltage drop across each light bulb is 6 volts, what is the resistance of each bulb?
19
30 sec
Q.
Two resistors with values of 8 ohms and 12 ohms are connected in series to a 24-volt battery. What is the voltage drop across the 12-ohm resistor?
