Advertisements
Advertisements
Question
Why should the resistance of:
an ammeter be very small?
Solution
An ammeter should have a very low resistance so that it will not change the value of the current flowing in the circuit.
APPEARS IN
RELATED QUESTIONS
A current of 4 A flows around a circuit for 10 s. How much charge flows past a point in the circuit in this time?
What is an electric current?
A given wire of resistance 1 Ω is stretched to double its length. What will be its new resistance?
A wire of uniform thickness with a resistance of 27Ω is cut into three equal pieces and they are joined in parallel. Find the equivalent resistance of the parallel combination.
Tick(✓) the correct choice in the following:
A three pin plug is connected to the lead for a 1 kW electric iron to be
used on a 250 V supply. Which of the following statements is not correct?
State the condition when it is advantageous to connect cells in parallel.