0
Why a resiatance reading of 200 ohms across the terminals of a woofer speaker is?
Wiki User
∙ 11y agoWant this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
Why does your Fridge thermostat have a resistor across the terminals?
It doesn't. It has an arc suppressor across them.
If 120V is present on a120V relay coil what will the voltage reading be across the closed set of relay contacts on a 120V circuit?
0v The relay is designed to act as a switch when voltage is applied across the coil. The contacts open or close but only pass through whatever is connected to those terminals. <<>> When a relay coil is energized the relay's contact change status. The closed set of contacts will open. The 120 volt circuit that is connected will turn off. As to the voltage at the contact terminals, it depends on where you are taking the voltage reading from and to. On the source side of the terminal there will be a reading of 120 volts to neutral or ground. On the other side of the contact terminal there will be zero volts to the neutral or ground. This is because that wire is in series with the load to neutral. A meter reading across the relay terminals will read 120 volts.
What are input impedance in a load cell?
The resistance measured across the excitation terminals of the load cell, when the output terminals are open.
Why current source is replaced by open circuit across the terminals?
For an ideal current source, this means replace the current source with an open circuit. Resistance can then be calculated across the terminals.
Which will normally have the larger resistance a voltmeter or an ammeter?
A voltmeter has the large resistance.The voltage across any component can be measured if & only if the terminals of that component will be open and this will we can acheiv if we connect the high resistance voltmeter across the open terminals of that component to measure the voltage.
How do you test speaker impedance?
You can measure speaker impedance with a multimeter set to the ohmmeter setting. Just place the multimeter probes across the two terminals of the speaker and you'll get the impedance value.
How do you know if a wire is carring current for the speakers in a vechiles?
With the system powered on and playing sounds measure the voltage at the speaker terminals with an AC voltmeter. If you measure voltage turn off the system and disconnect one of the speaker terminals and measure across the speaker with an ohm meter. If there is any significant conductance the wire is probably carrying current when the system is playing. Better yet take it to a competent technician.
While transporting sensitive galvanometer the terminals are?
connecting the damping resistance across the terminals
What is maintained across the terminals of a battery?
Current
Why does your Fridge thermostat have a resistor across the terminals?
It doesn't. It has an arc suppressor across them.
If 120V is present on a120V relay coil what will the voltage reading be across the closed set of relay contacts on a 120V circuit?
0v The relay is designed to act as a switch when voltage is applied across the coil. The contacts open or close but only pass through whatever is connected to those terminals. <<>> When a relay coil is energized the relay's contact change status. The closed set of contacts will open. The 120 volt circuit that is connected will turn off. As to the voltage at the contact terminals, it depends on where you are taking the voltage reading from and to. On the source side of the terminal there will be a reading of 120 volts to neutral or ground. On the other side of the contact terminal there will be zero volts to the neutral or ground. This is because that wire is in series with the load to neutral. A meter reading across the relay terminals will read 120 volts.
How do I test the alternator on a 1999 Pontiac Sunfire?
Connect a voltmeter across the battery terminals without engine running reading should be around 12.8 With engine running reading should be 13.8-14.2 if you are getting these numbers alternator is charging battery
Why my speaker doesn't make a sounds?
You don't say whether speaker built in or free-standing. Problem is either speaker, amp or wiring between. Assuming stereo, put speaker on other channel. If fault changes over = speaker or wiring at fault. If it doesn't = amp at fault. Assuming fault changed over, check plugs and connections and meter wires for continuity. Speaker should have nominal 4, 8 or 16 ohms across the terminals
What is the potential difference across the terminals of a battery?
Please share your answer?
What are input impedance in a load cell?
The resistance measured across the excitation terminals of the load cell, when the output terminals are open.
A voltage that has been stepped down is measured across the output terminals of a?
transformer
How can you tell if you have a twelve inch speaker or an fifteen inch speaker?
Measure it across the front.
