Physics Laboratory Manual
4th Edition
ISBN: 9781133950639
Author: David Loyd
Publisher: Cengage Learning
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Chapter 31, Problem 4PLA
To determine
The phenomena that happens when the shunt resistor is placed in parallel with the galvanometer in the procedure for determination of
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A straight rod moves along parallel con-
ducting rails, as shown. The rails are con-
nected at the left side through a resistor so
that the rod and rails form a closed rectangu-
lar loop. A uniform field perpendicular to the
movement of the rod exists throughout the
region.
Assume the rod remains in contact with
the rails as it moves. The rod experiences no
friction or air drag. The rails and rod have
negligible resistance.
3.7 T
3.7 T
At what speed should the rod be moving to
produce the downward current in the resistor?
Answer in units of m/s.
0.39 A –
® 7.6 g
1.6 m
I’m not certain what to do next in the attached question. If the switch is closed, that means that the capacitor starts discharging, right? I’m just confused on whether there would be current flowing through the capacitor if the switch is closed. Wouldn’t there be a break in the current since the capacitor doesn’t touch? Any help would be appreciated. I just need help understanding C in the question. Thank you!
what will be the value of I, just after the switch is closed
2Ω
S
12V
7nF
HE
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- (a) What is the speed of a supersonic aircraft with a 17.0-m wingspan, if it experiences a 1.60V Hall voltage between its wing lips when in level flight over the north magnetic pole, where the Earth's field strength is 8.00105T ? (b) Explain why very little current flows as a result of this Hall voltage.arrow_forwardDesign a current loop that, when rotated in a uniform magnetic field of strength 0.10 T, will produce an emf =0 sin t. where 0=110V and 0=110V .arrow_forwardA solenoid with 4 x 107turns/m has an iron core placed in it whose magnetic susceptibility is 4.0 x 103. (a) If a cent of 2.0 A flows through the solenoid, what is the magnetic field in the iron core? (b) What is the effective surface current formed by the aligned atomic current loops in the iron core? (c) What is the self-inductance of the filled solenoid?arrow_forward
- In the August 1992 space shuttle flight, only 250 m of the conducting tether considered in Example 23.2 could be let out. A 40.0 V motional emf was generated in me Earth’s 5.00105T field, while moving at 7.80103m/s. What was the angle between the shuttle’s velocity and the Earth’s field, assuming the conductor was perpendicular to the field?arrow_forwardThere are two concentric tungsten wire loops; a 4 cm radius loop and a 33 cm radius loop. The cross-sectional area of each wire is 0.009 m2. The current in the larger loop goes from 0 A to a counterclockwise 9 A in 5.9 10-4 s. Find the voltage & current in the smaller loop during the stated time interval. Assume the B-field of the larger loop is uniform (though not constant) across the smaller loop. V = I =arrow_forwardTwo tangent galvanomor que identical in all 2 grupects except that one has a tuens I the other has 20 luens If they are connected in parallel awess a sence of emf. Find the relation between deflection observed.arrow_forward
- Referring to Figure , draw a graph of potential difference across the resistor versus time, showing at least two intervals of τ . Also draw a graph of currentversus time for this situation.arrow_forwardConsider a thin permanently magnetized toroid of mean radius a having a small air between its pole faces. If it has a permanent magnetization M of constant magnitude in circumferential direction. Find B and H both in air gap and within material. gap Alarrow_forwardAn aluminum bar moves with a speed 2m/s between two copper roads in a magnetic field of 2T as indicated on the figure. The distance between the cooper roads is 10m. The aluminum bar is always in contact with cooper roads and moves without friction. A voltmeter is coupled between the roads. What is the potential measured by the voltmeter (in volt), if the resistance of the rods and aluminum bar are consider to be negligible?arrow_forward
- in the circuit shown in the figure, the S switch is closed at t=0 and the capasitors, which are completely empty, begin to fill. Here E=30V, C=3 uF and R=40 ohm. A) what is the time constant of the circuit, T, in the units of microseconds? B)when t=T, what is the total charge, in units of microcoulomb?arrow_forwardA four pole machine generates 250V when operated at 1500rpm. If the flux per pole is 1.085x10^6 Maxwells, the number of armature slots is 45 and the armature winding has two parallel paths, Calculate (a) the total number of armature conductors, (b) the number of conductors each slot.arrow_forward13.34. In Fig. 13-21 a radial conductor, 3 ≤ r ≤ 6 cm, is shown embedded in a rotating glass disk. Two 11.2 m2 resistors complete two circuits. The disk turns at 12 rev/min. If the field at the disk is B = 0.30a, (T), calculate the electric power generated. What is the effect of this on the rotation? Discuss Lenz's law as it applies to this problem. an R Fig. 13-21 Rarrow_forward
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