CSEE
Physics · Karatasi 2A · 2023
3 maswali 🇹🇿 NECTA ✓ Majibu rasmi ya NECTA
CSEE
🇹🇿 NECTA
✓ Majibu rasmi ya NECTA
Physics · Karatasi 2A · 2023
3 maswali
💰 Fanya mtihani kamili
TZS 200
Mtihani wa saa 3 wa muda · husahihishwa kiotomatiki · huhesabiwa kwenye nafasi
Lipa na anza mtihani →
Maswali (3)
Sehemu A
1.
25 alamas
(i)
Tabulate the results of l, t and t^2.
8 alama
(i)
Tabulate the results of l, t and $t^2$.
8 alama
(iv)
The graph of I against t° is related by the equation t = where x is the distance from the centre of the mass of the pendulum bob to the point at which it is tied to the cotton thread and n is the number of oscillations. Using this equation and the slope obtained in 1(iii), estimate the acceleration due to gravity, g (cm/s).
0 alama
(iv)
The graph of $I$ against $t^{\circ}$ is related by the equation $t = \frac{l}{2\pi}\sqrt{\frac{l}{g}}$. Use this equation and the slope obtained in 1(iii), estimate the acceleration due to gravity, $g$ (cm/s).
0 alama
(v)
From your graph, determine the $l$-intercept in cm.
0 alama
(v)
From your graph, determine the l-intercept in cm.
0 alama
(ii)
Plot the graph of l against $t^2$.
10 alama
(ii)
Plot the graph of l against t^2.
10 alama
(vi)
What does the value obtained in 1(v) signify?
0 alama
(iii)
Determine the slope of the graph in 1(ii).
7 alama
(vi)
What does the value obtained in 1(v) signify?
0 alama
(iii)
Determine the slope of the graph in 1(ii).
7 alama
Boresha ili kuona majibu ya mfano.
2.
25 alamas
You have been provided with a cell E, the key K, resistance box R, ammeter A and the voltmeter V. Proceed as follows: Set up the circuit as shown in Figure 2.
(i)
Prepare a table of values including $I$ (A), $V$ (V) and ($E - V$) (V)
0 alama
(i)
Prepare a table of values including I (A), V (V) and (E - V) (V)
0 alama
(ii)
Plot a graph of (E-V) in volts against I in amperes.
0 alama
(ii)
Plot a graph of $(E-V)$ in volts against $I$ in amperes.
0 alama
(iii)
Compute the slope of the graph plotted in 2 (ii).
0 alama
(iii)
Compute the slope of the graph plotted in 2(ii).
0 alama
(iv)
What is the physical meaning of the slope in 2 (iii)?
0 alama
(iv)
What is the physical meaning of the slope in 2(iii)?
0 alama
(v)
If a house alarm is rated 3 $\Omega$ is connected in the circuit, determine the current that must flow through the circuit alarm to operate it.
0 alama
(v)
If a house alarm is rated 3 2 is connected in the circuit, determine the current that must flow through the circuit alarm to operate it.
0 alama
Boresha ili kuona majibu ya mfano.
💡 Fungua majibu na maelezo yote
Premium · TZS 3000/mwezi