HARD
10th ICSE
IMPORTANT
Earn 100

For which of the following substances, resistance decreases with increase in temperature?

50% studentsanswered this correctly

Important Questions on Current Electricity

HARD
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 8 - Current Electricity>QUESTIONS>Q 5
Find the potential difference(in Volts) required to pass a current of 200 mA in a wire of resistance 20 ohm.
HARD
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 8 - Current Electricity>QUESTIONS>Q 6
An electric bulb draws 1.2 A Current at 6 V. The resistance of the filament of the bulb while glowing is_____ohm.
EASY
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 8 - Current Electricity>QUESTIONS>Q 7
Define the term resistance. State it's S.I. unit.
MEDIUM
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 8 - Current Electricity>QUESTIONS>Q 8
What is an ohmic resistor? Give one example of an ohmic resistor.
EASY
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 8 - Current Electricity>QUESTIONS>Q 9
What are non-ohmic resistors? Give few examples.
HARD
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 8 - Current Electricity>QUESTIONS>Q 10
How does the resistance of a wire depend on its radius? 
HARD
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 8 - Current Electricity>QUESTIONS>Q 11
How does the resistance of a metallic wire depend on its temperature? Explain with reason.
EASY
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 8 - Current Electricity>QUESTIONS>Q 12
Which of the following is an ohmic resistance?