Q 4 please Specific Charge Of Copper Ions(01): The specific charge (k) of the copper ions (Cu) was found to be 3.03x10" (C\kg) if thecurrent used was 0.7 A, then the time needed (in minutes) for a change of 0.5 g in the cathodemass was:a)23.1b)36.1c)18.1d)56.1(02): The copper that is deposited on the electrode comes from:a) The solution in the cellb) The anode. c) The cathoded) The batteryOhm's Law:(03);: Two wires A and B are made from same material. Wire A has twice the diameter () andhalf the length of wire B. If the resistance of wire A is 20 n. What is the resistance of wire B 7b) 75802c) 54202d) 62802a) 1600Electric Field Mapping(04): The electric field E (in v/m) at point B is:a) 76.5b) 64.3c) 32.1 d) 81.8Potentiometer(05):) A wire of 100 resistance and length of 2m, is used in apotentiometer circuit to determine an unknown voltage V. Thebalance point occurs at 1-30cm.The voltage of unknown source is:a) 0.9vc) 0.18Vb) 0,42Vd) 4.2V(Q6); Calculate the conversion constant C, in this experiment?b) 3a) 5c) 2d) 4RC-Circuit A 10mF capacitor is charged by a 10 V battery through aresistance R. The capacitor reaches a potential difference of 4 V in a timeinterval of 3s after charging begins.(97): Find the value of resistance R in (2)?a) 587b) 424c) 634d) 841#Tem6VHem(08): Calculate the maximum current flowing in the circuit?b) 21mAa) 13mAc) 17mAd) 12mAThe Earth Magnetic Field:(09): In this experiment a student plotted graph (tan) versus (I), where I is the current troughthe coil of galvanometer (N-100 turns, R=10cm, radius) and 0 is the deflection angle of thecompass needle. Calculate the horizontal component of the earth's magnetic field?

Answered: Image /qna-images/answer/1d9dbee2-af5a-4ef3-bcc0-633630039d29.jpg

Answered: half the length a) 1600 c) 5420…

half the length a) 1600 c) 5420 Electric Field Mapping (04): The electric field E (in v/m) at point B is: b) 64.3 a) 76.5 c) 32.1 b) 7580 d) 62802 d) 81.8 ** 1-1 7cm Hem

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.

Question

Q 4 please

Specific Charge Of Copper Ions
(01): The specific charge (k) of the copper ions (Cu) was found to be 3.03x10" (C\kg) if the
current used was 0.7 A, then the time needed (in minutes) for a change of 0.5 g in the cathode
mass was:
a)23.1
b)36.1
c)18.1
d)56.1
(02): The copper that is deposited on the electrode comes from:
a) The solution in the cell
b) The anode. c) The cathode
d) The battery
Ohm's Law:
(03);: Two wires A and B are made from same material. Wire A has twice the diameter () and
half the length of wire B. If the resistance of wire A is 20 n. What is the resistance of wire B 7
b) 75802
c) 54202
d) 62802
a) 1600
Electric Field Mapping
(04): The electric field E (in v/m) at point B is:
a) 76.5
b) 64.3
c) 32.1 d) 81.8
Potentiometer
(05):) A wire of 100 resistance and length of 2m, is used in a
potentiometer circuit to determine an unknown voltage V. The
balance point occurs at 1-30cm.The voltage of unknown source is:
a) 0.9v
c) 0.18V
b) 0,42V
d) 4.2V
(Q6); Calculate the conversion constant C, in this experiment?
b) 3
a) 5
c) 2
d) 4
RC-Circuit A 10mF capacitor is charged by a 10 V battery through a
resistance R. The capacitor reaches a potential difference of 4 V in a time
interval of 3s after charging begins.
(97): Find the value of resistance R in (2)?
a) 587
b) 424
c) 634
d) 841
#Tem
6V
Hem
(08): Calculate the maximum current flowing in the circuit?
b) 21mA
a) 13mA
c) 17mA
d) 12mA
The Earth Magnetic Field:
(09): In this experiment a student plotted graph (tan) versus (I), where I is the current trough
the coil of galvanometer (N-100 turns, R=10cm, radius) and 0 is the deflection angle of the
compass needle. Calculate the horizontal component of the earth's magnetic field?

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