Each member of your group should press a tape onto the table and write a \"B\" (

Question

Each member of your group should press a tape onto the table and write a "B" (for bottom) on it. Then press another tape on top of each B tape and label it "T" (for top). Pull each pair of tapes off the table as a unit. After they are off the table, separate the T and B tapes. Hang one of the T tapes and one of the B tapes from the support at your table. Describe the interaction between the following pairs of tape when they are brought near one another. middot two T tapes middot two B tapes middot a T and a B tape Which tape, T or B, has a positive charge? Explain.

Explanation / Answer

(a) Describe the interaction between the following pairs of tape when they are brought near one another.

For two T tapes, we have

T-T interaction     (Repel)

For two B tapes, we have

B-B interaction     (Repel)

For a T and a B tapes, we have

T-B interaction Or B-T interaction   

(Attract)

(b) Which tape, T or B has a positive charge? Explain.

T tape

We know that, two T tapes repel, two B tapes repel but a T tape and B tape attract. The plastic rod repels the B tape and attracts the T tape.

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