Question

3 x 10¹7 electrons cross in 30 seconds through an area. What is the

electric current ?​

Answer 1

Answer:-

The characteristics of an image formed by a flat mirror are:-

(a) The image and object are the same distance from the mirror.

(b) The image is a virtual image.

(c) The image is situated behind the mirror. A convex mirror is a diverging mirror and forms only one type of image, namely a virtual image.

Answer 2

Answer:

Step-by-step explanation:

Hi.

Given----

number of electrons(n) = 3 × 10 to the power 7

Time taken by the electrons(t) = 30 seconds

Also. we know charge on one electron = -1.6 × 10 to the power19

Using the formula, Charge = no of electrons × charge on one electrons

                                Q = n × e-

                                Q = 3 × 10 to the power 7 × 1.6 × 10 to the power 19

                           

Now, using the formula of current (I)

                                          I= Q /t

                        I= ( 3 × 10 to the power 7 × 1.6 × 10 to the power 19) / 30

                        I= 1.6 × 10 to the power 28 A

                        I= 1.6 × 10^28 A

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