NCERT Class X Science Class: Chapter –12. Electricity – Part-1

Download PDF of This Page (Size: 234K)

Multiple Choice Questions

Question 1:

A cell, a resistor, a key and ammeter are arranged as shown in the circuit diagrams of Figure. The current recorded in theammeter will be

Image A cell, a resistor, a key and ammeter - 1

Image a Cell, a Resistor, a Key and Ammeter - 1

Image A cell, a resistor, a key and ammeter - 1

Image A cell, a resistor, a key and ammeter - 2

Image a Cell, a Resistor, a Key and Ammeter - 2

Image A cell, a resistor, a key and ammeter - 2

Image A cell, a resistor, a key and ammeter - 3

Image a Cell, a Resistor, a Key and Ammeter - 3

Image A cell, a resistor, a key and ammeter - 3

(a) Maximum in (i)

(b) Maximum in (ii)

(c) Maximum in (iii)

(d) The same in all the cases

Answer: B

Image current recorded in theammeter

Image Current Recorded in Theammeter

Image current recorded in theammeter

Question 2:

In the following circuits (Figure), heat produced in the resistoror combination of resistors connected to a battery will be

Image Circuits - 1

Image Circuits - 1

Image Circuits - 1

Image Circuits - 2

Image Circuits - 2

Image Circuits - 2

Image Circuits - 3

Image Circuits - 3

Image Circuits - 3

(a) Same in all the cases

(b) Minimum in case (i)

(c) Maximum in case (ii)

(d) Maximum in case (iii)

Answer: A

Question 3:

Electrical resistivity of a given metallic wire depends upon

(a) Its length

(b) Its thickness

(c) Its shape

(d) Nature of the material

Answer: D

Image Electrical resistivity of a metallic

Image Electrical Resistivity of a Metallic

Image Electrical resistivity of a metallic

Question 4:

A current of is drawn by a filament of an electric bulb. Number of electrons passing through a cross section of the filament in would be roughly

(a)

(b)

(c)

(d)

Answer: A

Developed by: