In an experiment, a square aluminium bar of 10.5m long and 15mm width is connected to a 1.5v battery at a room temperature (27C). The current trough its ends is measured before and after immersion in boiling water. Determine :a) The resistance of the bar between its ends before immersion.b) The resistance of the bar between its ends after immersion.c) The electric current through the bar between its ends after immersion. Example 18.8experiment, a U Al bor of Io.5m longand 15 mm width is connected to a 1.5 VIn anbattery at rov m temperature (27°c). TheCurrent through its ends is measured beforeand af ter immersion in boiling water, Determinea) The resistance of the bar between itsends before immersion.6) The resis tance of the bar be tweenits end af ter immersiOn.CIThe electric eurrent throngh thebar between its ends afterimmersionthe resistivity and temperatureco e Fficient of reeistivity for9l umininm are respectively- 830ps 2.82x10 sîm,sem, a= 3.9x10

Given Voltage V =1.5 V Length l= 10.5 m Width w =15 mm Resistivity ρ =2.82×10-8 Ώ m Temperature…

In an experiment, a U Al bar of 10.5m long and 15 mm width is connected to a 1.5V battery at room temperature (27°c). The Eur rent through its ends is measured before and af ter immersion in boi ling water. De ter mine a) The resistance of the bar between its ends before immersion. 6) The resis tance of the bar be tween its end af ter immersion. The electric current through the bar between its ends afterimmersion t he resistivity and temperature co e Fficient of repistivity for 9) umininm are respectively - 8 po 2,82x10 m, a= 3.9x10°c

In an experiment, a U Al bar of 10.5m long and 15 mm width is connected to a 1.5V battery at room temperature (27°c). The Eur rent through its ends is measured before and af ter immersion in boi ling water. De ter mine a) The resistance of the bar between its ends before immersion. 6) The resis tance of the bar be tween its end af ter immersion. The electric current through the bar between its ends afterimmersion t he resistivity and temperature co e Fficient of repistivity for 9) umininm are respectively - 8 po 2,82x10 m, a= 3.9x10°c

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter21: Resistive-capacitive Series Circuits

Section: Chapter Questions

Problem 1PP

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