Question

8. From the following figure, four sets of observations are taken. Identify the correct observation— Magnetic field at point “A” is outwards, and at “B” it is inwards Magnetic field at point “A” is inwards, and at “B” it is outwards Magnetic field at both the points is inwards Magnetic field at both the points is outwards Directions for Question numbers 9, 10, and 11. They are “Assertion-Reason” based questions. They consist of two statements— (1) Assertion and (2) Reason. Select the answer to these questions using the code given below. 9. 1. Assertion: A charged particle moving parallel to the direction of the magnetic field experiences a force. 2. Reason: A charged particle moving at a right angle to the direction of the Magnetic field experiences a maximum force Both (1) and (2) are true and (2) is the correct explanation of (1) Both (1) and (2) are true, but (2) is not the correct explanation of (1) (1) is true but (2) is false (1) is false, but (2) is true 10. 1. Assertion: Magnetic field lines around a bar magnet do not form closed curves. 2. Reason: Magnetic field lines around a bar magnet starts from North- pole and ends at South-pole Both (1) and (2) are true and (2) is the correct explanation of (1) Both (1) and (2) are true, but (2) is not the correct explanation of (1) (1) is true but (2) is false (1) is false, but (2) is true 11. 1. Assertion: The child-sex ratio is declining at an alarming rate in some sections of our society. 2. Reason: Surgical contraceptive methods may be misused for illegal sex-selective abortion of female fetuses. Both (1) and (2) are true and (2) is the correct explanation of (1) Both (1) and (2) are true, but (2) is not the correct explanation of (1) (1) is true but (2) is false (1) is false, but (2) is true 12. The ultimate source of variation is_____________ Asexual reproduction Mutation Sexual reproduction Natural selection 13. Selection of variants by environmental factors forms --- The basis of evolutionary processes The basis of reproduction The basis of inheritance of traits The basis of sex determination 14. Consider the following statements: 1. Both of the parents contribute DNA equally to the offspring. 2. Sex of the child is determined by the type of ovum provided by the mother. Which of these statement(s) is/are correct? (1) only (2) only (1) and (2) Neither (1) nor (2) 15. Yellow-Round = i; Yellow-Wrinkled = ii; Green-Round = iii; Green-Wrinkled = iv Choose the correct option— i = 32; ii = 108; iii = 101; iv = 315 i = 108; ii = 315; iii = 32; iv = 101 i = 315; ii = 101; iii = 108 iv = 32 i = 101; ii = 32; iii = 315; iv = 108 #all answer must be correct and i need genuine answer ...............please answer as fast as possible..................i am in online exam right now!!! understand the questions there are 8- 15 questions

Answer 1

Answer:

The right hand rule states that, to find the direction of the magnetic force on a positive moving charge, the thumb of the right hand point in the direction of v, the fingers in the direction of B, and the force (F) is directed perpendicular to the right hand palm.

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