Question 5 a) i. A piece of pencil lead is connected in series with an ammeter and a power supply. The power supply is turned on. After a few minutes, although the potential difference across the pencil lead does not change, the current in the circuit increases significantly. Explain why the current increases. ii. The current / in a length of aluminum of cross-sectional area A is given by the formula I nevA e is the charge on an electron. Show that the units on the left-hand side of the equation are consistent with those on the right-hand side.

Question 5 a) i. A piece of pencil lead is connected in series with an ammeter and a power supply. The power supply is turned on. After a few minutes, although the potential difference across the pencil lead does not change, the current in the circuit increases significantly. Explain why the current increases. ii. The current / in a length of aluminum of cross-sectional area A is given by the formula I nevA e is the charge on an electron. Show that the units on the left-hand side of the equation are consistent with those on the right-hand side.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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