lab report physics matriculation experiment 2 semester 1

High School
You don't have any recent items yet.
You don't have any courses yet.
You don't have any books yet.
You don't have any Studylists yet.
Information

Experiment 2 OHM LAW

Physics (sp_025), kolej matrikulasi kelantan, students also viewed.

Chapter 1 physic mcq
Pea week 9 answer - Ans for tuto
Jawapan physic cp 5 - Answer for tuto
Format Report EXP 1 SP025
0809 QM016 2 - okkkk
Jadual Outing DAN Balik Bermalam

Preview text

Items contents, topic exp 2 : ohm’s law.

To verify Ohm’s Law
To determine the effective resistance of the resistors in series and parallel combination. THEORY At constant temperature the potential difference, V across a conductor is directly proportional to the current, I that flows through it. The constant of proportionality is known as resistance of the conductor denoted by R.

Mathematically, 𝑉 ∝ 𝐼 𝑉 = 𝐼𝑅 2.

For resistors in series, the equivalent resistance is: 𝑅 = 𝑅 1 + 𝑅 2 + 𝑅 3 +... 2.

For resistors in parallel, the equivalent resistance is: 1 𝑅=

1 𝑅 3 + .... 2.

APPARATUS Apparatus Range Sensitivity battery - - D ammeter 0 – 1 A ±0 𝐴 D voltmeter 0 – 5 V ±0 𝑉 Three resistors of the same resistance, 27 Ω

A Switch - - Few connecting wires - -

Determine the resistance of each resistor from their colour bands.

The circuit as shown in Figure 2 is set up. The three resistors must be connected in series.

The resistance value in the resistance box are changed to get a minimum reading of the milliammeter, I . The reading of the voltmeter V and the milliammeter, I .

The resistance values in the resistance box are changed to obtain at least five different values of V and I .

A graph of V against I is plotted.

From the graph, the effective resistance in series is deduced respectively.

The circuit as shown in Figure 2 is set up.

Steps (3) to (5) are repeated for other values of I and V.

From the graph, the effective resistance of the three resistors connected in parallel is deduced.

The value obtained in steps (6) and (9) is compared with the calculated theoretical values.

From the two plotted graphs, the Ohm’s Law is verified.

Percentage difference 100% 6. 1%

The experiment value of effective resistance is 6 Ω, but the standard value is 6. Ω. The percentage of difference from the standard value is 1%. The inaccuracy were due to several possible errors may occur during the experiment.

Some sources/mistakes that maybe occurred during the experiment are as follow:

Errors / Difficulty Precaution / Suggestion Circuit is switched on for a long period of time. This may increase the resistance as resistance is proportional to the temperature.

Let the circuit to ‘rest’ after some time to avoid the circuit from heating up.

Parallax errors may occur when taking the reading of ammeter and voltmeter.

Look at the ammeter or voltmeter perpendicularly when taking the reading.

Range of resistance of carbon resistor is large because the tolerance’s band is gold (5%).

Use the resistor with lower tolerance which is less than 5%.

Answer all the questions (if any).

CONCLUSION 1) From this experiment, we can conclude that the Ohm’s Law is obeyed as a

straight line graphs are obtained from both graph and V  I.

Effective resistance, Reff in parallel is, Req = 6 Ω
Multiple Choice

Course : Physics (SP_025)

University : kolej matrikulasi kelantan.

lab report physics matriculation experiment 2 semester 1

More from: Physics SP_025 Kolej Matrikulasi Kelantan 30 Documents Go to course

AKU BUDAK MATRIKULASI

UNIVERSITY NOTE SHARING IS CARING ALUMNI MATRIKULASI MALAYSIA

Search This Blog

Collection past papers of ups chemistry matriculation semester 2, lecture note & tutorial chemistry semester 2, lab report sem2 ses : sound waves, lab report sem2 : geometrical optics, lab report physics semester 2 : ohm's law, lab report: capacitor physics semester 2, lab report experiment 1 sem 2 : simple harmonic motion ses, collection of pspm 2 /semester 2, biology matriculation tutorial semester 2, [ses] bio_score biology matriculation sem2, bio_score notes biology matriculation semester 2, tutorial chemistry semester 2 (w/o answers), bio 1-note semester 2, lecture note mathematics matrikulasi semester 2 sm025, module physics matrikulasi semester 2 (kolej matrikulasi selangor version), lecture note matriculation physics semester 2 (selangor matriculation college ver), 1 page note physics matrikulasi semester 2, contoh jawapan pre-lab matrikulasi semester 2 (bio,fiz,kim), mind map physics matriculation, physics semester2 ( semester 2 notes /list of formulalist of definition & terminology ), physics matriculation lecture note #semester 2, mathematics semester 2 summary notes, short notes biology matrikulasi sem2, cara beli upu bsn, matriculation confession: the worst sin i have done this sem, koleksi soalan trial sains komputer matrikulasi sem1, ulang kaji biology matrikulasi, biology ques semester1 (prep 4 pspm).