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A nine-volt battery is connected to a thin wire (r=.0005 m, length = 1.50 m) of...
A 2.0m length of metal wire is connected to a 1.5 V battery, and a current of 5.0mA flows through it. What is the diameter of the wire? (The resistivity of metal is 2.24
A thick copper wire 2.3 m long is connected in series to a thin high-resistance Nichrome wire. In the steady state, the conventional current in the thick copper wire is 4 amperes. In this copper wire there are 8 � 1028 mobile electrons per cubic meter and the electron mobility is 4.5 � 10?3 (m/s)/(V/m). The cross-sectional area of the copper wire is 6 � 10?7 m2. The thin high-resistance Nichrome wire (which is connected in series to the thick...
In the circuit shown in the diagram below, two thick wires connect a 1.4 volt battery to a Nichrome (NIC) wire. Each thick connecting wire is 14 cm long, and has a radius of 9 mm. The thick wires are made of copper, which has 8.35+28 mobile electrons per cubic meter, and an electron mobility of 0.00434 (m (V/m). The Nichrome wire is 8 cm long, and has a radius of 4 mm. Nichrome has 9e+28 mobile electrons per cubic...
7) A 4.0 m length of gold wire is connected to a 1.5 V battery, and a current of 4.0 mA flows through it. What is the diameter of the wire? (The resistivity of gold is 2.44 × 10-8 Ω·m.) A) 17 µm B) 8.5 µm C) 48 µm D) 9.0 µm
A wire of length 10 m is connected to a battery. If the diameter of the wire is 0.4 mm and the current flows is 5.0 A, what is the voltage across the battery?
8. (15 pts) A conducting wire has a 1.00 mm diameter, a 1.50 m length, and its resistivity is 3.0 x10-12.m. This wire is connected between the terminals of a 3.00 V battery. (a) What is the resistance of the conducting wire? (b) What is the electric power consumption of the conducting wire?
Example # 22.1: A 6.0 volt battery is connected to a 3.0 ohm resistor for 1 hour. A) Find the current through the resistor. B) Find the total charge that passes through the resistor. Example # 22.2: Find the resistance of a nichrome wire that is 2.5 m long and has a diameter of 2.0 mm. The resistivity of nichrome is 1.5 x 10 . Example # 22.3: A) Find the power output of the battery in 22.1. B) Find...
you have a 6 volt battery connected to a heating wire. the heating wire is placed in 100 gram of water( in a perfect insulator). the heater runs for 55 seconds. during this time, the water increases in temperature by 22 degree Celsius. if the specific capacity of the water is 4.186 joules/g*c, how much current flow from the battery? assume there are no energy losses?
Two pieces of wire arc soldered together and connected to a battery as shown. Each piece has the same diameter and length, but the second piece is made of a material whose resistivity is three times larger than the first. (a.) What is the ratio of the current flowing through the first piece to the current flowing through the second piece? Explain. (b.) What is the ratio of the potential difference across the first piece to the potential difference across...
The current through a 83 m long wire connected to a battery is 2.3 A. A section of the wire is cut off and used to build a circuit. When the remaining wire is connected to the same battery as before the current in the wire is 3.3 A. How much wire is left?