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Subelement B
Electrical Math
Section 14
RC Time Constants-1
What is the term for the time required for the capacitor in an RC circuit to be charged to 63.2% of the supply voltage?
• An exponential rate of one.
One time constant.
• One exponential period.
• A time factor of one.

What is the term for the time required for the capacitor in an RC circuit to be charged to 63.2% of the supply voltage?

One time constant.

From kd9fni:

1 time constant = time it takes to charge to 63.2% of the voltage, or discharge to 36.8% of the starting voltage.

2 time constants = charge to 86.5% or discharge to 13.5%.

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What is the meaning of the term “time constant of an RC circuit”? The time required to charge the capacitor in the circuit to:
• 23.7% of the supply voltage.
• 36.8% of the supply voltage.
• 57.3% of the supply voltage.
63.2% of the supply voltage.

What is the meaning of the term “time constant of an RC circuit”? The time required to charge the capacitor in the circuit to:

63.2% of the supply voltage.

From kd9fni:

1 time constant = time it takes to charge to 63.2% of the voltage, or discharge to 36.8% of the starting voltage.

2 time constants = charge to 86.5% or discharge to 13.5%.

Last edited by markadlerdallas. Register to edit

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What is the term for the time required for the current in an RL circuit to build up to 63.2% of the maximum value?
One time constant.
• An exponential period of one.
• A time factor of one.
• One exponential rate.

What is the term for the time required for the current in an RL circuit to build up to 63.2% of the maximum value?

One time constant.

From kd9fni:

1 time constant = time it takes to charge to 63.2% of the voltage, or discharge to 36.8% of the starting voltage.

2 time constants = charge to 86.5% or discharge to 13.5%.

Last edited by markadlerdallas. Register to edit

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What is the meaning of the term “time constant of an RL circuit”? The time required for the:
• Current in the circuit to build up to 36.8% of the maximum value.
• Voltage in the circuit to build up to 63.2% of the maximum value.
Current in the circuit to build up to 63.2% of the maximum value.
• Voltage in the circuit to build up to 36.8% of the maximum value.

What is the meaning of the term “time constant of an RL circuit”? The time required for the:

Current in the circuit to build up to 63.2% of the maximum value.

From kd9fni:

1 time constant = time it takes to charge to 63.2% of the voltage, or discharge to 36.8% of the starting voltage.

2 time constants = charge to 86.5% or discharge to 13.5%.

Last edited by markadlerdallas. Register to edit

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After two time constants, the capacitor in an RC circuit is charged to what percentage of the supply voltage?
• 36.8 %
• 63.2 %
86.5 %
• 95 %

After two time constants, the capacitor in an RC circuit is charged to what percentage of the supply voltage?

86.5 %

From kd9fni:

1 time constant = time it takes to charge to 63.2% of the voltage, or discharge to 36.8% of the starting voltage.

2 time constants = charge to 86.5% or discharge to 13.5%.

Last edited by markadlerdallas. Register to edit

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After two time constants, the capacitor in an RC circuit is discharged to what percentage of the starting voltage?
• 86.5 %
13.5 %
• 63.2 %
• 36.8 %

After two time constants, the capacitor in an RC circuit is discharged to what percentage of the starting voltage?

13.5 %

From kd9fni:

1 time constant = time it takes to charge to 63.2% of the voltage, or discharge to 36.8% of the starting voltage.

2 time constants = charge to 86.5% or discharge to 13.5%.

Last edited by markadlerdallas. Register to edit

Tags: none