Conduction electrons move to the right in a certain wire. This indicates that: A

Question

Conduction electrons move to the right in a certain wire. This indicates that: A) the conventional current density points left but the direction of the electric field is unknown B) the conventional current density points right and the electric field points left C) the conventional current density points left and the electric field points right D) the conventional current density and electric field both point right E) the conventional current density and electric field both point left F) None of the above The time constant RC has units of: A) second/farad B) second/ohm C) second D) second/watt E) none of these In the circuit shown, there will be a non-zero reading in galvanometer G (a galvanometer is a device that can measure very small currents): A) only just after S is opened or closed B) only while S is kept closed C) only just after S is opened D) only just after S is closed E) None of the above Two point charges are arranged as shown. In which region would a third charge +1 C be placed so that the net electrostatic force on it is zero II only I and III only III only I and II only I only

Explanation / Answer

problem 1

answer is option E because electrons and force move to the right so field will move to the left.

problem 2

RC is also called tau or time t so units will be second answer is option C

PROBLEM 3

there will be non zero reading in galvanometer only just after s is opened or closed so answer will be option A

PROBLEM 4

I and III only answer is option B

Related Questions

Navigate

• Browse (All)
• Browse C
• Subjects

---