| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.62 |
| Score | 0% | 72% |
You would measure the amount of resistance at a certain point in a circuit with a(n):
voltmeter |
|
ammeter |
|
potentiometer |
|
ohmmeter |
Resistance is opposition to the flow of current and is measured in ohms (Ω). An ohmmeter is used to measure the amount of resistance at a certain point in a circuit.
A diode to an electronic circuit is like a _______________ to a city?
parking lot |
|
traffic light |
|
highway |
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one-way street |
A diode allows current to pass easily in one direction and blocks current in the other direction.
Resistance is opposition to which of the following?
voltage |
|
current |
|
conductance |
|
impedance |
Resistance is opposition to the flow of current and is measured in ohms (Ω). One ohm is defined as the amount of resistance that will allow one ampere of current to flow if one volt of voltage is applied. As resistance increases, current decreases as resistance and current are inversely proportional.
The ohm is a unit of measurement for:
power |
|
capacitance |
|
resistance |
|
energy |
Resistance is opposition to the flow of current and is measured in ohms (Ω). One ohm is defined as the amount of resistance that will allow one ampere of current to flow if one volt of voltage is applied. As resistance increases, current decreases as resistance and current are inversely proportional.
This circuit component symbol represents a(n):
diode |
|
capacitor |
|
potentiometer |
|
fuse |
Capacitors store electricity and are used in circuits as temporary batteries. Capacitors are charged by DC current (AC current passes through a capacitor) and that stored charge can later be dissipated into the circuit as needed. Capacitors are often used to maintain power within a system when it is disconnected from its primary power source or to smooth out or filter voltage within a circuit.