IIT JEE : Electromagnetic Induction Electromagnetic Waves QUESTIONS AND ANSWERS :: part1 : 1 to 5
Following IIT JEE Entrance Multiple choice objective type questions and answers will help you in Maths, Physics and Chemistry 2024 examinations :
1.The electromagnetic waves of much short wavelength (25 mm to 5 mm) were produced and observed by: |
| Maxwell |
| Hertz |
| Marconi |
| J.C. Bose |
2.A transformer has an efficiency of 80% and works at 100 V and 4 kW. If the secondary voltage is 240 V, then the value of primary current is: |
| 28.5 A |
| 40 A |
| 20 A |
| 80 A |
3.Electromagnetic waves are transverse in nature is evident by: |
| polarization |
| interference |
| reflection |
| diffraction |
4.A cylindrical bar magnet is kept along the axis of a circular coil. If the magnet is rotated about its axis, then: |
| a current will be induced in the coil |
| no current will be induced in the coil |
| an emf and a current both will be induced in the coil |
| none of the above |
5.An inductance has a high resistance to AC and low to DC. When a DC voltage source having same AC component superimposed on it sends current through an inductance to a load resistance: |
| the DC voltage falls appreciably across the AC component falls only a small amount |
| the AC and DC voltages fall by the same small percentage |
| the AC voltage falls appreciably across the load and DC voltage falls by only a small amount |
| both AC and DC voltage fall to nearly zero |
More Electromagnetic Induction Electromagnetic Waves QUESTIONS AND ANSWERS available in next pages
-
Health is the greatest gift, contentment is the greatest wealth -Buddha
- TNTET 2021 - Practice
- SSC CGL 2021 - Practice
- TNPSC Group 2A 2021 - Practice
- IIT JEE
- IIT JEE Q&A
- TNPSC Answer Keys
- TNPSC Group 2 Syllabus
-
TNPSC Q&A
- Online Tests - TNPSC
- Online Tests - GK
- IBPS 2020-2021
- Online Tests - Bank
- Online Tests - RRB NTPC
- Online Tests - UGC NET
- Online Tests - TANCET
- Online Aptitude Test
-
Engineering
-
Programming
-
Basic Science
-
Quiz
- Plus Two Question Papers
- SSLC Question Bank
-
Aptitude Tests
-
Logical Reasoning
-
General Knowledge-Hindi
-
Indian History MCQ
-
Indian Geography MCQ
-
Indian Civics MCQ
-
Indian Economics MCQ
-
CTET Biology MCQ
-
CTET Chemistry MCQ
-
CTET Physics Solved MCQ
-
Arithmetic Tests
- Press Release
- FAQ
- Coaching Centres
- TNPSC Group 1 Syllabus
-
TNPSC Group IV Syllabus
- TRB 2017 in English PDF
- TRB 2017 in Tamil PDF
- TET
- TNTET
