A long solenoid (n = 80 turns/cm) carries a current of 70 mA. Determine the magnitude of the magnetic field inside the solenoid


7.0 gauss

Physics & Space Science

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Can an element decay "backward" in the periodic table, to a lower atomic number?

A) No, in fact elements cannot alter their atomic number by radioactive decay. B) No, but an element can decay to a higher atomic number. C) Yes, by beta decay. D) Yes, by alpha decay. E) Yes, radioactive decay always causes elements to decay to a lower atomic number.

Physics & Space Science

What is the average power dissipation in a series RC circuit if R = 5.00 k?, C = 2.00 ?F, and V = 170 cos (300t)?

a. 0.930 W b. 2.60 W c. 28.2 W d. 157 W e. 5.20 W

Physics & Space Science

Which of the following divisions of time cannot be changed by a human decision?

a. 60 minutes in an hour b. 365.2422 days in a year c. 7 days in a week d. 24 hours in a day

Physics & Space Science

A greater gravitational field causes time to

A) speed up. B) slow down. C) fluctuate. D) Gravity has no measurable effect on time.

Physics & Space Science