EASY
10th CBSE
IMPORTANT
Earn 100

To find the equivalent resistance of two resistors connected in parallel, two students connected the ammeter in two different ways as given in the two circuits (I) and (II). In which circuit the ammeter has been correctly connected?

Question Image  Question Image  

Important Questions on Electricity

MEDIUM
10th CBSE
IMPORTANT
Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 1 - Electricity>NCERT EXEMPLAR PROBLEMS>Q 2

In the following circuits, the heat produced in the resistor or combination of resistors connected to a 12 V battery will be

Question ImageQuestion ImageQuestion Image

 

HARD
10th CBSE
IMPORTANT
Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 1 - Electricity>NCERT EXEMPLAR PROBLEMS>Q 12
If the current I through a resistor is increased by 100%(assume that temperature remains unchanged), the increase in power dissipated will be:
MEDIUM
10th CBSE
IMPORTANT
Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 1 - Electricity>NCERT EXEMPLAR PROBLEMS>Q 15
In an electrical circuit, two resistors of 2 Ω and 4 Ω respectively are connected in series to a 6 V battery. The heat dissipated by the 4 Ω resistor in 5 s will be: 
MEDIUM
10th CBSE
IMPORTANT
Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 1 - Electricity>NCERT EXEMPLAR PROBLEMS>Q 19

A child has drawn the electric circuit to study Ohm’s law as shown in figure. His teacher told that the circuit diagram needs correction. Study the circuit diagram and redraw it after making all corrections.

Question Image

EASY
10th CBSE
IMPORTANT
Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 1 - Electricity>IMPORTANT QUESTIONS>Q 36
Name the two devices that use the heating effect of current.
EASY
10th CBSE
IMPORTANT
Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 1 - Electricity>IMPORTANT QUESTIONS>Q 16
Draw a schematic diagram of a circuit consisting of a 24 V battery, a 10 ohm resistor, a 5 ohm resistor and a 1 ohm resistor, an ammeter and a plug key, all connected in series. Calculate the ammeter reading in this circuit. 
 
EASY
10th CBSE
IMPORTANT
Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 1 - Electricity>IMPORTANT QUESTIONS>Q 30
How does the heat produced in a wire of a conductor depend upon the resistance of the conductor? 
EASY
10th CBSE
IMPORTANT
Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 1 - Electricity>IMPORTANT QUESTIONS>Q 31
Name the physical quantity that is measured in kilowatt. (Electric energy/ Electric power).