IOn this questionnaire, all batteries connecting wires have no resistance. Unlik

Question

IOn this questionnaire, all batteries connecting wires have no resistance. Unlike most real bulbs, the resistances of the butts on this test do not change as the current through them changes. Resistors (R) are shown as 1. If an object is negatively charged, it means A. protons have been removed from the object B. protons have been added to the object C. electrons have been removed from the object D. electrons have been added to the object E. neutrons have been removed from the objects 2. When a hard rubber rod is given a negative charge by rubbing it with woot: A. positive charges are transferred trom rod to wool negative charges are transferred from rod to wool C. positive charges are transferred from wool to rod negative charges are transferred from wool to rod negative charges are created and stored on the rod E. 3. To make an uncharged object have a negative charge we must: A. add some atoms B. remove some atoms C. add some electrons D. remove some electrons E. write down a negative sigrn 4. An electrical insulator is a material: A. containing no electrons B. through which electrons do not flow easily C. which has more electrons than protons on its surtace D. cannot be a pure chemical element E. must be a crystal 5. An electron traveling north enters a region where the electric field is uniform and west. The electron: A. speeds up B. slows down C. veers east D. veers west E. continues with the same speed in the same direction

Explanation / Answer

1)

A. protons have been removed from the object

D.electrons have been added to the object

Due to both these actions, a net neagtive charge can occur on the object

2)

Both options A and D can be answer.

But option D is more feasible as removing an electron is far easier than removing a proton

3)

C. add some electrons

Adding some electrons will give a negative charge to the object

4)

B. through which electrons do not flow easily.

The definition of insulator gives this option

5)

As the electric field is towards west, the electron will move opposite to the direction of electric field .

So, it will veer east.

Answer : C. veers east

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