MEDIUM
10th Rajasthan Board
IMPORTANT
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Write the difference between direct current and alternating current.

Important Questions on Magnetic Effects of Electric Current

EASY
10th Rajasthan Board
IMPORTANT
Science Crash Course (Based on Revised Syllabus-2023)>Chapter 13 - Magnetic Effects of Electric Current>Exercise>Q 55
State one important advantage of using alternating current.
MEDIUM
10th Rajasthan Board
IMPORTANT
Science Crash Course (Based on Revised Syllabus-2023)>Chapter 13 - Magnetic Effects of Electric Current>Exercise>Q 56
What are the disadvantages of A.C.?
MEDIUM
10th Rajasthan Board
IMPORTANT
Science Crash Course (Based on Revised Syllabus-2023)>Chapter 13 - Magnetic Effects of Electric Current>Exercise>Q 57
Explain how the induced current in D.C. generator is unidirectional?
MEDIUM
10th Rajasthan Board
IMPORTANT
Science Crash Course (Based on Revised Syllabus-2023)>Chapter 13 - Magnetic Effects of Electric Current>Exercise>Q 58
What is the role of slip rings in a dynamo?
EASY
10th Rajasthan Board
IMPORTANT
Science Crash Course (Based on Revised Syllabus-2023)>Chapter 13 - Magnetic Effects of Electric Current>Exercise>Q 59
Why is the use of A.C. preferred over D.C.?
EASY
10th Rajasthan Board
IMPORTANT
Science Crash Course (Based on Revised Syllabus-2023)>Chapter 13 - Magnetic Effects of Electric Current>Exercise>Q 60

On what factors does the force experienced by a straight conductor placed in a magnetic field depend? Fleming stated two laws involving left hand and right hand. Which law is applicable when mechanical energy changes into electric energy?

EASY
10th Rajasthan Board
IMPORTANT
Science Crash Course (Based on Revised Syllabus-2023)>Chapter 13 - Magnetic Effects of Electric Current>Exercise>Q 61
Which material is generally used as a core in A.C. generator and why?
EASY
10th Rajasthan Board
IMPORTANT
Science Crash Course (Based on Revised Syllabus-2023)>Chapter 13 - Magnetic Effects of Electric Current>Exercise>Q 70
How is electromagnet made?