Question: A ballistic galvanometer is a device that measures the total charge Q that passes through it in a short time. It is connected to a

A ballistic galvanometer is a device that measures the total charge Q that passes through it in a short time. It is connected to a search coil that measures B (also called a flip coil) which is a small coil with N turns, each of cross-sectional area A. The flip coil is placed in the magnetic field to be measured with its face perpendicular to the field. It is then quickly rotated 180° about a diameter. Show that the total charge Q that flows in the induced current during this short "flip" time is proportional to the magnetic field B. In particular, show that

Where R is the total resistance of the circuit including the coil and ballistic galvanometer which measures charge Q.

QR 2NA

Step by Step Solution

★★★★★

3.61 Rating (166 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

The average induced emf is given by Eq 212b Because the coil orientati... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

1308-P-M-P-Q-M(2050).docx

120 KBs Word File

Students Have Also Explored These Related Modern Physics Questions!

A nitrogen rotameter is calibrated by feeding N 2 from a compressor through a pressure regulator, a needle valve, the rotameter, and a dry test meter, a device that measures the total volume of gas...

A coil of radius r = 25 cm wound of a thin copper wire of length l = 500 m rotates with an angular velocity w = 300 rad/s about its axis. The coil is connected to a ballistic galvanometer by means of...

A small coil is introduced between the poles of an electromagnet so that its axis coincides with the magnetic field direction. The cross-sectional area of the coil is equal to S = 3.0 mm 2, the...

A flip coil is a device used to measure a magnetic field. A coil of radius r, N turns, and electrical resistance R is initially perpendicular to a magnetic field of magnitude B. The coil is connected...

Magnetic field values are often determined by using a device known as a search coil. This technique depends on the measurement of the total charge passing through a coil in a time interval during...

Planning is one of the most important management functions in any business. A front office managers first step in planning should involve determine the departments goals. Planning also includes...

can someone solve this Modern workstations typically have memory systems that incorporate two or three levels of caching. Explain why they are designed like this. [4 marks] In order to investigate...

Question 1 (5 points) For which sets of electrodes are we determining the Shape of the electric field? : One point charge (monopole) : Two plates : Two point charges (dipole) : One point charge, one...

Please help me with my economic development subject, i will provide resources at the bottom part. thank you and godbless. I hope someone can help me. Question: 1. Briefly describe the various...

Consider the market for UNCG tee shirts sold at the bookstore. a.) [5 pts] What conditions must be satisfied for the bookstore wishes to sell tee shirts to students (S) at a different price than...

What international reporting issues are triggered by AKZO NOBELs foreign operations disclosures appearing in Exhibit 1-3 for investors? For managerial accountants?

Consider that the Transmission Error Count ( TEC ) of ECU A is 1 2 0 when it comes under a bus - off attack by another ECU B . At the beginning of the bus - off attack, the TEC of ECU B is 1 1 2 ....

3.7 A person with low income in the United Kingdom may receive both food and housing vouchers. If that persons income were 130 per week, and the prices of both food and housing were 1 per unit, draw...

Inside the wall of a house, an L-shaped section of hot-water pipe consists of a straight horizontal piece 28.0 cm long, an elbow, and a straight vertical piece 134 cm long (Figure P19.14). A stud and...

A brass ring of diameter 10.00 cm at 20.0C is heated and slipped over an aluminum rod of diameter 10.01 cm at 20.0C. Assuming the average coefficients of linear expansion are constant, (a) To what...

A square hole 8.00 cm along each side is cut in a sheet of copper. (a) Calculate the change in the area of this hole if the temperature of the sheet is increased by 50.0 K. (b) Does this change...

Suppose you want to hedge a $330 million bond portfolio with a duration of 5.5 years using 10-year Treasury note futures with a duration of 7 years, a futures price of 107, and 9 months to...

Can you explain it step by step please

Explain this statement: "It may be better to target one competitor in many countries than many competitors in a few countries." Why is this the case? Explain this statement: "It may be better to...