Why resistance is used in galvanometer?
A high resistance is used in series because it makes total net resistance more high hence it draws no current from circuit and all of the current goes through the element across which voltage is to be measured hence more accurate value is obtained.
What is the purpose of using resistance in series with the galvanometer does it affect the null point?
The resistance in series with galvanometer does not affect the null point.
Where is galvanometer used in circuit?
Definition: The galvanometer is the device used for detecting the presence of small current and voltage or for measuring their magnitude. The galvanometer is mainly used in the bridges and potentiometer where they indicate the null deflection or zero current.
What is resistance of galvanometer?
The galvanometer coil has a small resistance about 100 ohms. The galvanometer is used to detect small electric current in the circuit. When there is current flow through the galvanometer coil, it deflects.
What is the galvanometer resistance?
the galvanometer resistance equals that value of the variable resistance in the two methods. which gives the same second deflection. A new method which resembles the Kelvin method of. obtaining the resistance of a galvanometer is reported.
Can a galvanometer measure resistance?
Galvanometer has small resistance. The construction of the galvanometer is same as that of the ammeter but the only difference between an ammeter and a galvanometer is that the ammeter has additional resistance connected in parallel with the circuit. Was this answer helpful?
What is the effect of galvanometer on measurement of high resistance?
What is the effect of galvanometer on measurement of high resistance? Explanation: If the Wheatstone bridge is used for the measurement of high resistance, the galvanometer becomes insensitive and does not detect any imbalance.
Which part of the galvanometer gives the resistance?
The resistance of a galvanometer is the resistance of the copper wire and of the hair springs used to transport the current to the coil.
Does galvanometer have high resistance?
Galvanometer has small resistance. The construction of the galvanometer is same as that of the ammeter but the only difference between an ammeter and a galvanometer is that the ammeter has additional resistance connected in parallel with the circuit.