In the figure, l = 16 cm , B = 0.700 T , R = 5.0 , and v = 2.0 m/s . (Figure 1)

Question

In the figure, l = 16 cm , B = 0.700 T , R = 5.0 , and v = 2.0 m/s . (Figure 1)

Part A

Find the current in the resistor.

Express your answer using two significant figures.

Part B

Find the magnetic force on the bar.

Express your answer using two significant figures.

Part C

Find the power dissipation in the resistor.

Express your answer using two significant figures.

Part D

Find the rate of the mechanical work done by the agent pulling the bar.

Express your answer using two significant figures.

Figure 1 of 1

In the figure, l = 16 cm , B = 0.700 T , R = 5.0 , and v = 2.0 m/s . (Figure 1)

Part A

Find the current in the resistor.

Express your answer using two significant figures.

I= ?A

Part B

Find the magnetic force on the bar.

Express your answer using two significant figures.

Fmag= ?N

Part C

Find the power dissipation in the resistor.

Express your answer using two significant figures.

P= ?W

Part D

Find the rate of the mechanical work done by the agent pulling the bar.

Express your answer using two significant figures.

P= W

Figure 1 of 1

Explanation / Answer

a) current = emf/R = vBl/R = 2*0.7*0.16/5 = 0.0448 amp

b) f = ilB = 0.0448*0.16*0.7 = 0.005 N

c) power = i^2*R = 0.0448^2*5 = 0.01 watt

d) power of bar = emf*i = vBl*i = 0.01 watt

Related Questions

Navigate

• Browse (All)
• Browse I
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.