Question

ANSWER ASAP PLEASE !!! A galvanometer detects ____ by showing needle movement in ___ . If the wires in this galvanometer are attached to the terminals of a battery, the compass needle will move and point ____ to the wrapped coil of wire. If the wires to the terminal connections are switched, the needle will move and point in the ____ direction. The movement of the needle can be altered and read incorrectly if there is a strong ____ nearby.
1. an electric field
a magnetic field
a vacuum
2. an electric current
a magnetic field
a vacuum
3. parallel
perpendicular
at a 45- degree angle
4. same
opposite
magnetic north
5. magnet
wind
light source

Answer 1

Answer: 1 - an electric current

               2 -  a magnetic field

               3-  perpendicular

               4 - opposite

               5 -  magnet

Answer 2

1. an electric current

2. a magnetic field

3. perpendicular

4. opposite

5. magnet

How does a galvanometer work?

• A moving coil galvanometer works at the principle that a current-carrying coil placed in a magnetic field experiences a torque.
• The coil springs alongside the radial field ensure the deflection is proportional to the strength of the current.

The galvanometer is the tool used for detecting the presence of small currents and voltage or for measuring their magnitude.

The galvanometer is mainly used in the bridges and potentiometer which indicates the null deflection or 0 current.

Learn more about galvanometers here

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