Topper's Solved these Questions
Similar Questions
Explore conceptually related problems
MODERN PUBLICATION-ALTERNATING CURRENTS-EXERCISE
- What do you mean by power factor? On what factors does it depend?
Text Solution
|
- Explain the importance of power factor.
Text Solution
|
- For circuit used for transporting electric power, a low power factor i...
Text Solution
|
- Why power factor correction is must in heavy machinery?
Text Solution
|
- Power factor can often be improved by the use of capacitor of appropri...
Text Solution
|
- Which is more dangerous in use a.c. or d.c.? Explain, why?
Text Solution
|
- Why 200 V a.c. more dangerous than 220 V d.c.?
Text Solution
|
- Why 200 V a.c. more dangerous than 220 V d.c.?
Text Solution
|
- Why is the use of A.C. voltage preferred over D.C. voltage? Give two r...
Text Solution
|
- The circuit arrangement given in the figure shows that when an ac. pas...
Text Solution
|
- The circuit arrangement given in the figure shows that when an ac. pas...
Text Solution
|
- In India domestic power supply is at 220 V, 50Hz. While in USA it is 1...
Text Solution
|
- What are the factors which reduce the efficiency of a transformer ?
Text Solution
|
- How are the energy losses reducedin a transformer ?
Text Solution
|
- What are the factors which reduce the efficiency of a transformer ?
Text Solution
|
- Why the core of a transformer made of a magnetic material of high perm...
Text Solution
|
- Why the core of a transformer made of a magnetic material of high perm...
Text Solution
|
- A step up transformer converts a low input voltage into a high output ...
Text Solution
|
- Describe the use of transformer for long distance transmission of a.c.
Text Solution
|
- A transformer of 100% efficiency has 500 turns in the primary and 10,0...
Text Solution
|