PHY 214, Fall 2017 Exam 3 Chapters 27, 28, and 29 3 3 6 MI-2.0 A In the circuit

Question

PHY 214, Fall 2017 Exam 3 Chapters 27, 28, and 29 3 3 6 MI-2.0 A In the circuit element shown, the current through the 6-2 resistor is approximately A) 1.0A B) 2.0 A C)0.40 A D)0.67 A E)1.3 A . An alpha particle has a charge of +2e (e - 1.6 x 10"1 C) and is moving at right angles to a magnetic field B-0.27 T with a speed v-6.15 x 10s m/s. The force acting on this charged particle is A) zero B) 5.3 × 10-14 N C) 3.3 x 10 N D) E) 2.7×10-14N 4.8 × 10° N 3. A 1000-turn solenoid is 50 cm long and has a radius of 2.0 cm. It carries a current of 8.0 A. What is the magnetic field inside the solenoid near its center? A) 2.0×10-2 T B) 3.2 × 10-3 T c) 4.0x 101T D) E) 1.0T 2.0×10" T

Explanation / Answer

1) Given that

I = 2 A

Now current through 6 is

6= 2( 3/9) = 2/3 A

= 0.67 A

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