Electric Current
why do we choose a wire made up of a material of low temperature co-efficient for a meter bridge?
why do we choose a wire made up of a material of low temperature co-efficient for a meter bridge?
1 Answer
Devasish Bindani
if we use a high temperature coefficient material for the wire then the wires resistance will vary with temperature and also its length will be different thus the readings taken will not be right and correct.
got it
Other Related Questions on electric current
The fig. Shows a network of resistance in which the point A is earthed
The fig. Shows a network of resistance in which the point A is earthed
electric current
Last Activity: 4 Years ago
When a p.d of 2v is applied across a resistor, 10j of energy are covered. What charge flows through the resistor?
When a p.d of 2v is applied across a resistor, 10j of energy are covered. What charge flows through the resistor?
electric current
Last Activity: 4 Years ago
Please provide it's solution. In video form Find the equivalent resistance of the given figure
Please provide it's solution. In video form
Find the equivalent resistance of the given figure
electric current
Last Activity: 4 Years ago
The resistivity of material is 10 ohm m at 30 C when the temperature drops to 28 then the resistivity drops by 2. The temperature coefficient of resistivity of material is
The resistivity of material is 10 ohm m at 30 C when the temperature drops to 28 then the resistivity drops by 2. The temperature coefficient of resistivity of material is
electric current
Last Activity: 4 Years ago
Three cells of 2.0v each and internal resistance of 1.0 each are connected in series and in parallel calculate the new emf and new internal resistance in each connection
Three cells of 2.0v each and internal resistance of 1.0 each are connected in series and in parallel calculate the new emf and new internal resistance in each connection
electric current
Last Activity: 4 Years ago