2) For a galvonometer, the value of the current that gives a full scale deflection is...
Y ou have available a galvanometer that gives a full-scale deflection for a 333-μA current and has a coil resistance of 33 Ω. (a) What shunt resistance is needed to convert this galvanometer to a 5.0-A ammeter? (b) What series resistance is needed to convert this galvanometer to a 5.0-V voltmeter?
A galvanometer of resistance 100 Ω gives full-scale deflection when its current is 1.0 mA. It is used to construct an ammeter whose full-scale reading is 100 A. If the shunt resistor consists of a piece of 10-gauge copper wire (diameter 2.59 mm), what should its length be
A galvanometer has a coil resistance of 100 ohms and gives a full scale deflection when the potential difference across it is 0.0005 V. What size resistor (with a value measured in ohms) is required to make a 5.0 A. full scale deflection ammeter?
A galvanometer has a coil with a resistance of 24.0 ?, and a current of 180 ?A causes it to deflect full scale. If this galvanometer is to be used to construct an ammeter that can read up to 10.0 A, what shunt resistor in micro-ohms is required?
A galvanometer with a coil resistance of 16.3 is used with a shunt resistor to make a nondigital ammeter that has an equivalent resistance of 0.817 . The current in the shunt resistor is 3.97 mA when the galvanometer reads full scale. Find the full-scale current of the galvanometer.
A galvanometer with a coil resistance of 16.3 is used with a shunt resistor to make a nondigital ammeter that has an equivalent resistance of 0.817 . The current in the shunt resistor is 3.97 mA when the galvanometer reads full scale. Find the full-scale current of the galvanometer.
In the circuit shown below the ammeter consists of a
galvanometer, with resistance Rg = 100 Ω, in parallel with a
‘shunt’ resistor, Rs = 2.00 Ω. The current, Ig, flowing through the
galvanometer is 22.1 mA. The external circuit resistance is Rc =
20.0 Ω. If the EMF of the cell is 25.0 V, what is its internal
resistance?
EMF 25.0 V A )ammeter
What is the sensitivity (in µA) of the galvanometer (that is, what current gives a full-scale deflection) inside a voltmeter that has a 1.50 MΩ resistance on its 30.0 V scale? µA
A moving cool milliameter having a resistance of 10 ohms gives full scale deflection when a current of 5 MA is passed through it. explain how this instrument can be used for measure (a) current uptown 1A, (b) voltage up to 5v
Given that a certain galvanometer has an internal resistance of 254 Ω and can handle a maximum current of 250 μA, design an ammeter capable of reading at full-scale deflection (the maximum current without burning up the meter) 10 A and a voltmeter capable of reading at full-scale deflection 10 V. Assume that the space available in the meter for the shunt (for the ammeter) or limiting (for the voltmeter) resistor is no more than 5 mm in length and...