Grade 11 Electric Current Quiz
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What will this voltmeter register when connected to a battery as shown (assume a battery voltage of 12 volts)?
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-10 V
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-8 V
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-6 V
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-12 V
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- 2.
Which diagram shows a circuit that will allow the lamps to be switched on and off independently?
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A
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B
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C
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D
Correct Answer
A. DExplanation
Diagram D shows a circuit that will allow the lamps to be switched on and off independently. This is because each lamp is connected to its own switch, allowing them to be controlled separately. The switches are connected in parallel, meaning that each switch can control the flow of current to its respective lamp without affecting the other lamps. Therefore, when one switch is turned on, only its corresponding lamp will light up, while the others remain off.Rate this question:
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- 3.
Four lamps are labeled ‘60 W 240 V.’ In which circuit are the lamps connected so that they all work at normal brightness?
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A
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B
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C
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D
Correct Answer
A. AExplanation
In circuit A, the lamps are connected in parallel. This means that each lamp has its own separate branch connected directly to the power source. In this configuration, each lamp receives the full voltage of 240 V, allowing them to operate at their normal brightness.Rate this question:
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- 4.
Four lamps are labeled ‘60 W 240 V.’ In which circuit are the lamps connected so that they all work at the lowest brightness?
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A
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B
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C
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D
Correct Answer
A. DExplanation
In circuit D, the lamps are connected in series. When lamps are connected in series, the total voltage across the circuit is divided equally among the lamps. Therefore, each lamp receives a lower voltage compared to the other circuits, resulting in lower brightness.Rate this question:
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- 5.
The diagram shows a circuit with three ammeters, X, Y, and Z.
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A
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B
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C
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D
Correct Answer
A. D -
- 6.
Calculate the value of a resistor in ohms accordingly to the graph, which shows: - The voltage applied to the resistor. - The current passing through the resistor
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5 ohms
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10 ohms
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15 ohm
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20 ohms
Correct Answer
A. 5 ohmsExplanation
Based on the information provided, the correct answer is 5 ohms. This can be determined by looking at the graph and finding the point where the voltage and current intersect. At this intersection, the value of the resistor can be read as 5 ohms.Rate this question:
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- 7.
A 12.0 Ω lamp and a 6.0 Ω lamp are connected in series. What is the total resistance of the combination?
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0.5 Ω
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6.0 Ω
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18.0 Ω
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72.0 Ω
Correct Answer
A. 18.0 ΩExplanation
When two resistors are connected in series, the total resistance is equal to the sum of their individual resistances. In this case, the total resistance is the sum of the resistances of the 12.0 Ω lamp and the 6.0 Ω lamp, which is 18.0 Ω.Rate this question:
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- 8.
Fixed resistance has
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No dependence
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Light
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Candella
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Option 4
Correct Answer
A. No dependenceExplanation
The answer "No dependence" suggests that fixed resistance does not depend on any external factors or variables. It remains constant and does not change regardless of other conditions such as voltage or current. This characteristic of fixed resistance makes it predictable and reliable in electrical circuits.Rate this question:
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- 9.
The dependence of the Thermistor is
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Temperature
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Candella
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Light
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No dependence
Correct Answer
A. TemperatureExplanation
The dependence of the thermistor is temperature. A thermistor is a type of resistor whose resistance changes with temperature. As the temperature increases, the resistance of the thermistor decreases, and vice versa. This property makes thermistors useful in temperature sensing and control applications. They are commonly used in thermostats, temperature sensors, and temperature compensation circuits.Rate this question:
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- 10.
"Same current and the voltage splits," which kind of circuit meets this condition.
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Series
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Parallel
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Both 1 and 2
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Neither 1 nor 2
Correct Answer
A. SeriesExplanation
In a series circuit, the current passing through each component is the same. Additionally, the voltage across the components in a series circuit is divided among them. This means that the statement "Same current and the voltage splits" accurately describes a series circuit, where the current is constant and the voltage is divided across the components. Therefore, the correct answer is series.Rate this question:
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.jpg "Four lamps are labeled ‘60 W 240 V.’ In which circuit are the lamps connected so that they all work at normal brightness?")
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Current Version
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Aug 29, 2023Quiz Edited by
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May 26, 2015Quiz Created by
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