Question

Read the following and answer the questions:


In resistance for a system of the resistor, there are two methods of joining the

resistors together as shown below
It showed an electric current in which 3 resistors having resistor R
1
,R
2
and
R
3
respectively are join end to end i.e series. While the combination of the resistor

in which 3 resistors connected together which point X and Y are said to be parallel.

1.Find the least count of the following voltmeter.
2.Three 2 V cells are connected in series and used as a battery in a circuit.

(a) What is the p.d. at the terminals of the battery ?

(b) How many joules of electrical energy does 1 C gain on passing through (i)

one cell (ii) all three cells ?

3. The resistance of a wire of 0.01 cm radius is 10 Ω. If the resistivity of the

material of the wire is 50 × 10–8 ohm metre, find the length of the wire.

4.A charge of 150 coulomb flows through a wire in one minute. Find the

electric current flowing through it.

5. A voltmeter is to be connected in the circuit to measure potential difference

across a conductor.

Mention the type of combination in which it should be connected with the

conductor.

6.What is the shape of the graph between V and I, where V is the potential

difference applied between the ends of a wire and I is the current flowing

through it?

7. Three resistors of 10 Ω, 15 Ω and 5 Ω are connected in parallel. Find their

equivalent resistance?​

Answer 1

Answer:

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Hardwords

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6) taste

7) smell

8) feel

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10) recognize

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16) insects

17) scientists

18) human beings

19) sound

20) electric

21) national

22) collect

23) information

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25) killed