PHYSICAClass 12 Physics simulations · Moving Charges and Magnetism
Galvanometer to ammeter or voltmeter
Add a small shunt for an ammeter or a large series resistance for a voltmeter.
What to notice
An ammeter needs a very low resistance; a voltmeter needs a very high one.
Key relation
Ammeter: S = I_gG / (I − I_g) ; Voltmeter: R = V/I_g − G
Try this
Convert to a 10 A ammeter, then to a 100 V voltmeter.
What you can change
- Convert to: choose Ammeter (shunt), Voltmeter (series R)
- Galvanometer resistance G: 10 to 200 Ω
- Full-scale current I_g: 1 to 10 mA
- Desired range: 1 to 100 A or V
More in Moving Charges and Magnetism
- Cyclotron frequency
- Force on a current-carrying wire
- Helical motion in a magnetic field
- Magnetic field on the axis of a loop
- Charged particle in a field
- Moving-coil galvanometer
- Force between parallel currents
- Magnetic field inside a solenoid
- Crossed fields: the velocity selector
See all Class 12 Physics simulations or every Physica simulation.