- An Infinite Straight Wire Carries A Current I That Varies With Time As Shown Above It Increases From 0 At T 0 To A Maxi 1 (83.31 KiB) Viewed 44 times
An infinite straight wire carries a current I that varies with time as shown above. It increases from 0 at t=0 to a maximum value 1₁ = 5.4 A at t = t₁ = 18 s, remains constant at this value until t = t₂ when it decreases linearly to a value 4-5.4 A at t-t4-35 s, passing through zero at t-t3-29 s. A conducting loop with sides W - 36 cm and L - 76 cm is fixed in the x-y plane at a distance d = 50 cm from the wire as shown. I LA. 0 I₁ I(+) d W 1) What is the magnitude of the magnetic flux through the loop at time t-t₁-18 s? 590.97e-9 T-m² Submit You currently have 1 submissions for this question. Only 10 submission are allowed. You can make 9 more submissions for this question. Your submissions: 590.97e-9 x Computed value: 590.97-9 Submitted: Wednesday, July 6 at 5:02 PM Feedback: It looks like you have calculated the flux by multiplying the area of the loop by the magnetic field at the near edge of the loop. This approach is incorrect because the magnetic field varies with the distance from the wire. The magnetic field through the loop is not constant. 2) What is E, the induced emf in the loop at time t = 9 s? Define the emf to be positive if the induced current in the loop is clockwise and negative if the current is counter-clockwise. -32.032e-91 V Submit You currently have 1 submissions for this question. Only 10 submission are allowed. You can make 9 more submissions for this question. Your submissions: -32.032e-9 X Computed value: -32.032e-9 Feedback: Submitted: Wednesday, July 6 at 5:02 PM 3) What is E₂, the induced emf in the loop at time t - 20 s? Define the emf to be positive if the induced current in the loop is clockwise and negative if the current is counter-clockwise. 53.72e-9 V Submit You currently have 1 submissions for this question. Only 10 submission are allowed. You can make 9 more submissions for this question, Your submissions: 53.72e-9 x Computed value: 53.72e-9 Feedback: Submitted: Wednesday, July 6 at 5:03 PM 4) What is the direction of the induced current in the loop at time t = t3 - 29 seconds? Clockwise Counterclockwise There is no induced current at t-t₂ Submit You currently have 1 submissions for this question. Only 10 submission are allowed. You can make 9 more submissions for this question. 5) What is E4, the induced emf in the loop at time t = 32 s? Define the emf to be positive if the induced current in the loop is clockwise and negative if the current is counter-clockwise. V Submit