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# Magnetic, Electric and Gravitational Fields MCQs Quiz Online PDF Download eBook

Solve Magnetic, Electric and Gravitational Fields Multiple Choice Questions (MCQ), magnetic, electric and gravitational fields quiz answers PDF worksheet, A level physics practice test for online courses. Learn as level physics Multiple Choice Questions and Answers (MCQs), "Magnetic, Electric and Gravitational Fields" quiz questions and answers for SAT subject test tutoring. Learn centripetal force, nodes and antinodes, physics experiments test prep for best online colleges for teaching degree.

"Gravitational potential is always" Multiple Choice Questions (MCQ) on magnetic, electric and gravitational fields with choices positive, negative, zero, and infinity for SAT subject test tutoring. Practice magnetic, electric and gravitational fields quiz questions for merit scholarship test and certificate programs for online college courses.

MCQ: Gravitational potential is always

1. positive
2. negative
3. zero
4. infinity

B

MCQ: For a hydrogen atom the electrical force as compared to gravitational force is

1. 1039 times
2. 1040 times
3. 1041 times
4. 1042 times

A

MCQ: Weakest force in nature is

1. electric force
2. gravitational force
3. weak force
4. magnetic force

B

MCQ: Force per meter on two wires carrying a current of 1 A placed 1 m apart is equal to

1. 6.7 × 10-11 N
2. 9.0 × 109 N
3. 2.0 × 10-7 N
4. 3.0 × 10-4 N

C

MCQ: Origin of gravitational field is

1. charges
2. masses
3. Earth's core
4. matter

B