Two point charges are separated by a certain distance. How does the strength of

Question

Two point charges are separated by a certain distance. How does the strength of the electric field produced by the first charge, at the position of the second charge, change if the second charge is doubled? The field does not change. The field strength decreases by half. The field strength doubles. The field strength quadruples. The up-quark, u, has an elementary charge of +2/3 and the down-quark, d, of -1/3. What combination three of these quarks makes up a neutron? uuu uud udd ddd A positive charge is placed midway between two equal negative charges. What is the direction of the total force on the positive charge? The total force has no direction, because it is zero. The total force points perpendicular to the line connecting the negative charges. The total force points towards the negative charge nearest to the point from which the positive charge was moved. The total force points away from the negative charge nearest to the point from which the positive charge was moved. How does the number of field lines leaving a positive charge change in a field diagram if the charge is quadrupled? The number of lines remains the same. The number of lines increases by a factor of 2. The number of lines increases by a factor of 4. The number of lines increase by a factor of 8.

Explanation / Answer

Question 1. Option C : The electric field strength doubles

queston 2 . Option C: Neutron is composed of 2 down quarks and 1 up quark

since neutron charge is zero, adding together all the charges of the quark to get sum equal to zero

question 3: OptionA:The total force = 0 , the direction of the force is in two opposite directions which cancels each other.

question4: option C : The field lines increases by a factor of 4.

The field lines is directly proportional to the magnitude of charge.

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