Assertion: voltmeter's resistance | /r/HasProperty | high
Facets:
value: very
type: DEGREE
value: higher the better
type: MANNER
value: to avoid current flow
type: PURPOSE
value: to avoid
type: PURPOSE
Source sentences:
text: the voltmeter is connected in parallel Voltmeters must have a HIGH resistance
text: In other words, a voltmeter should have a very HIGH resistance.
text: The internal resistance of a voltmeter must be high.
text: The resistance of the series resistor is very high as compared to the resistance of the vacuum tube diode.
text: If the resistance is too high, it may block too much current and affect the currents in the circuit and alter the readings.
text: A voltmeter must have a very high resistance so that it does not affect the voltage level when connected to a circuit.
text: So really the requirement that a voltmeter have a high resistance is a consequence of the way in which resistances are added when placed in parallel.
text: A voltmeter is designed to have a high resistance and should be connected in parallel in order to measure accurately.
text: This is also a reason why the resistance of a voltmeter must be high to avoid current flow across it.
text: A voltmeter has high resistance,if connected in series it will increase of circuit and reduce the current in the circuit
text: Adding that resistance during a measurement will interfere with that circuit, but if that resistance is very high then that interference can be neglected.
text: If the switch was open the current would be forced to travel through the voltmeter which has very high resistance and the reading would be that of the applied voltage.
text: Any Voltmeter is just a high resistance plus a current measuring device.
text: The internal resistance of a voltmeter must be high to avoid it drawing significant current.
text: The internal resistance of the voltmeter must be high; otherwise it attracts a significant current and interrupts the operation of the circuit when a test is being made.
text: The effective resistance of the voltmeter R v = R + G. since R is high, the resistance of the voltmeter R v is high and it will not draw much current from the circuit.
text: Because of the way they are connected, the ammeter needs to have a very low resistance while the voltmeter needs to have a very high resistance.
text: If the internal resistance of the ammeter is high, it can restrict the flow further and result in a lower reading.
text: The voltage can be measured by allowing it to pass a current through a resistance; therefore, a voltmeter can be seen as a very high resistance ammeter.
text: A voltmeter has high resistance,if connected in series it will increase of circuit and reduce the current in the circuit
text: Ask your students why a voltmeter should have a very high resistance (many thousands or millions of ohms) between its test leads.
text: A voltmeter has high resistance,if connected in series it will increase of circuit and reduce the current in the circuit
text: The resistance of the multiplier has to be high enough so that only a small current passes through the galvanometer.
text: The voltmeter should have a very high resistance so that on connecting it in the circuit, there is negligible change in the circuit resistance (and hence the circuit current).
text: So, it should have very high resistance so that it doesn't "draw" current through it.
text: So, it should have very high resistance so that it doesn't "draw" current through it.
text: So, it should have very high resistance so that it doesn't "draw" current through it.
text: The theoretical resistance of a volt meter is very high, the higher the better.
text: A voltmeter should have a very high resistance relative to the circuit resistance, at least 100 times for a 1% error.
text: Why? if the resistance is high, it will change the circuit and possibly change the readings, and therefore the readings will be inaccurate.