0
An ammeter is placed in series with a circuit in order to measure the current. If it has any appreciable resistance, inserting the ammeter will increase the normal resistance of the circuit and reduce the value of the current flowing through it. The ammeter will, therefore, give an inaccurate reading (under-read). So the ammeter must have a very low resistance so that it has the minimum effect on the normal resistance of the circuit being tested. Ideally, the ammeter should have zero resistance but, of course, this is impossible.
What else can I help you with?
Why should the connecting wires in a bulb be of low resistance?
This is to avoid energy losses in the connecting wires.
What is the resistance value of gold?
The resistance value of gold is very low, typically around 22 microohms at room temperature. Gold is an excellent conductor of electricity due to its low resistance, which makes it useful in electronic components where low resistance is important.
What are some examples of items with low conductivity?
Thermal resistance: diamond Electrical resistance: copper Optical resistance: quartz
What is the metric unit for 1 millimeter?
The metric unit for 1 millimeter is meters. 1 millimeter is equal to 0.001 meters.
Is centimeter kilometer millimeter or meter the smallest?
Millimeter is the smallest unit among centimeter, kilometer, millimeter, and meter.
Is graphite a high resistance or low resistance of electricity?
Graphite is low resistance of electricity...
Why should the connecting wires in a bulb be of low resistance?
This is to avoid energy losses in the connecting wires.
What wire connection better high or low resistance?
Usually low resistance is better.
Does gold have a high or low resistance?
Gold has a low resistance, which means it is a good conductor of electricity. This property makes it useful in various electrical applications where low resistance is needed for efficient conduction of electricity.
What has a low resistance?
Silver and gold both have low resistances. Superconductors have zero electrical resistance. People with acquired immune deficiency syndrome (AIDS) also have low resistance to infection. Many women have a low resistance to my charming and magnetic personality.
If a multimeter reads zero on the ohm scale is this high or low resistance?
zero is low resistance
Which has the thickest filament - a high-resistance or a low-resistance bulb?
A high-resistance bulb typically has a thicker filament compared to a low-resistance bulb. The thicker filament in a high-resistance bulb can withstand the greater heat generated by the increased resistance, resulting in a longer lifespan for the bulb.
Why meter bridge can't be used to measure low resistance and high resistance?
used to measure low Resistance since it must reach a null.
Do meters usually have a high or low internal resistance?
It depends on the application. Voltmeters have a high internal resistance, while ammeters have a low internal resistance.
When a battery is connected across a high resistance in parallel with a low resistance more power is dissapited in the low resistance Is this statement true or false?
true
What is ment by high resistance and low resistance on a meter?
On a multimeter, a high resistance would indicate a high Ohmic value and a low resistance would indicate a low Ohmic value. Specific values would be relative to device you are measuring.
What is the difference between conductor resistance and insulation resistance?
The resistance of a conductor is relatively low while an insulator should have very high resistance. The former is used to transmit electricity and the latter is designed to inhibit flow of electricity.
