A steel cable is used to hang an object. If you doubled the diameter of the cable for the same object, the stress in the cable will; A) decrease one-fourth times of the original. B) decrease one-half of the original. increase twice of the original. increase four times of the original.

Q: 12. A copper conductor has a diameter of 1.265 mm and length of 500 m, calculate the operating…

A:

Q: 1. A bar structure of section 2 cm x 2 cm is made of cast steel is shown in Figure 1, determine the…

A:

Q: If the loop of wire is repelled by the long, straight wire in the illustration below, what is a true…

A: Given: Loop of wire is repelled by the straight wire

Q: -12. The core shown in Figure P1-4 is made of a steel whose magnetization curve is shown in Figure…

A:

Q: X x Xx X OX The following diagram shows a conductor of length &= 0.5 meters in a magnetic B field of…

A: Solution is given below

Q: Determine the electrical force of attraction between two balloons with separate charges of +3.5 x 10…

A: Given data, Charge q1=+3.5×10-8 C Charge q2=-2.9×10-8 C Distance between them 0.5 m

Q: Calculate the force between the two parallel conductors if they are 0.5 m in length and are…

A:

Q: A long solenoid is wound with1000 turns of thin insulated wire over a 15cm length. The core of the…

A:

Q: 1. A 60-cm long, straight wire conducts a current of 12 A directed out of the page. It experiences a…

A:

Q: Determine the current, I, in figure 3 required to establish a flux in the gap of fg=2´10-4 Wb in the…

A:

Q: Technician A says that voltage is the force developed by the attraction of the electrons to protons.…

A: The voltage also called the 'potential difference between the two points' which is developed by the…

Q: 1-9. The wire shown in Figure P1-6 is carrying 5.0 A in the presence of a magnetic field. Calculate…

A: The given figure is shown below: It is given that: B=0.25 Tl=1 mi=5 A

Q: A positive charge moves in parallel to a current carrying wire. What is the direction of the…

A: The given figure is,

Q: given - reasoning - steps - reflection

A: Need to find current  direction in wire2

Q: Find the relative permeability of a piece of silicon iron if a flux density of 1.3T is pro- duced by…

A: Given values are - B=1.3TH=700Am

Q: c. An iron ring (relative permeability = 190) in Figure 1 has a cross-sectional area of 550 mm² and…

A:

Photoelectric

The photoelectric effect occurs when light (or similar incident radiation, including X-rays) falls on material together with a metal plate and causes it to emit electrons. The discovery of the photoelectric effect led to important new theories (and to a Nobel Prize for Albert Einstein). Photoelectric cells, or photocells, are utilized in burglar-alarm light detectors and garage-door openers (each employs a through-beam of light this is broken when something movements throughout it), and also to play soundtracks on film movies (in which a light beam shines through the soundtrack encoded at the film and is "read" with the aid of the photocells).