Test: Electricity - 1 - Class 10 MCQ

Test: Electricity - 1 - Class 10 MCQ

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10 Questions MCQ Test - Test: Electricity - 1

Test: Electricity - 1 for Class 10 2024 is part of Class 10 preparation. The Test: Electricity - 1 questions and answers have been prepared according to the Class 10 exam syllabus.The Test: Electricity - 1 MCQs are made for Class 10 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Electricity - 1 below.
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Test: Electricity - 1 - Question 1

All elements of an electric circuit are connected in series except :

Detailed Solution for Test: Electricity - 1 - Question 1

In an electric circuit all other elements are connected in series but a voltmeter is connected in parallel.

Test: Electricity - 1 - Question 2

According to Ohm’s law, what is the relationship between voltage (V), current (I), and resistance (R)?

Detailed Solution for Test: Electricity - 1 - Question 2
Ohm's law states that the voltage (V) across a conductor is directly proportional to the current (I) flowing through it, with resistance (R) being the constant of proportionality, expressed as V = IR.
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Test: Electricity - 1 - Question 3

Which factor does affect the resistance of a conductor?

Detailed Solution for Test: Electricity - 1 - Question 3

it's  one of the three primary factors (length, cross-sectional area, and nature of material) directly used in calculating resistance using the formula R = ρL/A.

Test: Electricity - 1 - Question 4

The least resistance obtained by using 2Ω , 4Ω, 1Ω and 100Ω is

Detailed Solution for Test: Electricity - 1 - Question 4

In parallel combination, the equivalent resistance is Smaller than the least resistance used in the circuit.

Test: Electricity - 1 - Question 5

Two devices are connected between two points say A and B in parallel. The physical quantity that will remain the same between the two points is

Detailed Solution for Test: Electricity - 1 - Question 5

In parallel combination voltage remains same across two points.

Test: Electricity - 1 - Question 6

The resistance of an alloy :

Detailed Solution for Test: Electricity - 1 - Question 6

The resistance of an alloy increases with increase in temperature.

Test: Electricity - 1 - Question 7

To get 2Ω resistance using only 6Ω resistors, the number of them required is

Detailed Solution for Test: Electricity - 1 - Question 7

Three resistors of 2Ω is required to get 6Ω because resultant is more than individual so they all must be connected in parallel.

Test: Electricity - 1 - Question 8

Three resistors of 1Ω, 2 Ω and 3 Ω are connected in series with a battery of 12 V as shown in figure. Values of potential differences V1, V2, V3 across the three resistors have respective values :

Detailed Solution for Test: Electricity - 1 - Question 8

In series grouping current I is same throughout and potential differences are directly proportional to respective resistances.
In given circuit
∴ V1 = IR= 2 A x 1Ω = 2V,

V2 = IR2 = 2 A x 2 Ω = 4 V and

V3 = IR3 = 2 A x 3 Ω = 6 V.

Test: Electricity - 1 - Question 9

The resistance whose V - I graph is given below is

Detailed Solution for Test: Electricity - 1 - Question 9

Resistance = slope line of V-I graph

Test: Electricity - 1 - Question 10

The diagram shows a network of four resistors which is connected to an electric source. Identify the resistors which are connected in series in this network :

Detailed Solution for Test: Electricity - 1 - Question 10

In the circuit shown, the resistors B, C and D are connected in series.

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