266640
When a resistance 2 ohm is placed across a battery the current is 1 A and when the resistance across the terminal is 17 ohm , the current is 0.25 A . The emf of the battery is-
1 4.5 V
2 5 V
3 3 V
4 6 V
Explanation:
b \[ \begin{aligned} & \mathrm{i}_1=\frac{\mathrm{E}}{\mathrm{r}+2}=1 \\ & \frac{\mathrm{E}}{\mathrm{r}+17}=0.25 \\ & \frac{r+17}{r+2}=4 \\ & \Rightarrow 3 \mathrm{r}=9 \\ & \mathrm{r}=3 \mathrm{ohm} \end{aligned} \] from equation (i) E = 5 wolt
**NCERT-111**
TEST SERIES (PHYSICS FST)
266641
A condensor of capacity \(10 \mu \mathrm{~F}\) is charged to a potential of 500 V . Its terminal are then connected to those of an uncharged condensor of capacity \(40 \mu \mathrm{~F}\). The loss of energy in connecting them together is -
1 1 J
2 2.5 J
3 10 J
4 12 J
Explanation:
a Energy loss \(=\frac{\mathrm{C}_1 \mathrm{C}_2}{2\left(\mathrm{C}_1+\mathrm{C}_2\right)}\left(\mathrm{v}_1-\mathrm{V}_2\right)^2\)
**NCERT-34**
TEST SERIES (PHYSICS FST)
266642
Three pure inductances are connected as shown in figure. The equivalent inductance of this connection between A \& B.
1 2 H
2 3 H
3 1 H
4 9 H SECTION-B This section will have 15 questions. Candidate can choose to attempt any 10 questions out of these 15 questions. In case if candidate attempts more than 10 questions, first 10 attempted questions will be considered for marking.
Explanation:
c All are in parallel SECTION-B
**NCERT-PYQ**
TEST SERIES (PHYSICS FST)
266643
The di-electric constant of a medium can be:
NEET Test Series from KOTA - 10 Papers In MS WORD
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TEST SERIES (PHYSICS FST)
266640
When a resistance 2 ohm is placed across a battery the current is 1 A and when the resistance across the terminal is 17 ohm , the current is 0.25 A . The emf of the battery is-
1 4.5 V
2 5 V
3 3 V
4 6 V
Explanation:
b \[ \begin{aligned} & \mathrm{i}_1=\frac{\mathrm{E}}{\mathrm{r}+2}=1 \\ & \frac{\mathrm{E}}{\mathrm{r}+17}=0.25 \\ & \frac{r+17}{r+2}=4 \\ & \Rightarrow 3 \mathrm{r}=9 \\ & \mathrm{r}=3 \mathrm{ohm} \end{aligned} \] from equation (i) E = 5 wolt
**NCERT-111**
TEST SERIES (PHYSICS FST)
266641
A condensor of capacity \(10 \mu \mathrm{~F}\) is charged to a potential of 500 V . Its terminal are then connected to those of an uncharged condensor of capacity \(40 \mu \mathrm{~F}\). The loss of energy in connecting them together is -
1 1 J
2 2.5 J
3 10 J
4 12 J
Explanation:
a Energy loss \(=\frac{\mathrm{C}_1 \mathrm{C}_2}{2\left(\mathrm{C}_1+\mathrm{C}_2\right)}\left(\mathrm{v}_1-\mathrm{V}_2\right)^2\)
**NCERT-34**
TEST SERIES (PHYSICS FST)
266642
Three pure inductances are connected as shown in figure. The equivalent inductance of this connection between A \& B.
1 2 H
2 3 H
3 1 H
4 9 H SECTION-B This section will have 15 questions. Candidate can choose to attempt any 10 questions out of these 15 questions. In case if candidate attempts more than 10 questions, first 10 attempted questions will be considered for marking.
Explanation:
c All are in parallel SECTION-B
**NCERT-PYQ**
TEST SERIES (PHYSICS FST)
266643
The di-electric constant of a medium can be:
266640
When a resistance 2 ohm is placed across a battery the current is 1 A and when the resistance across the terminal is 17 ohm , the current is 0.25 A . The emf of the battery is-
1 4.5 V
2 5 V
3 3 V
4 6 V
Explanation:
b \[ \begin{aligned} & \mathrm{i}_1=\frac{\mathrm{E}}{\mathrm{r}+2}=1 \\ & \frac{\mathrm{E}}{\mathrm{r}+17}=0.25 \\ & \frac{r+17}{r+2}=4 \\ & \Rightarrow 3 \mathrm{r}=9 \\ & \mathrm{r}=3 \mathrm{ohm} \end{aligned} \] from equation (i) E = 5 wolt
**NCERT-111**
TEST SERIES (PHYSICS FST)
266641
A condensor of capacity \(10 \mu \mathrm{~F}\) is charged to a potential of 500 V . Its terminal are then connected to those of an uncharged condensor of capacity \(40 \mu \mathrm{~F}\). The loss of energy in connecting them together is -
1 1 J
2 2.5 J
3 10 J
4 12 J
Explanation:
a Energy loss \(=\frac{\mathrm{C}_1 \mathrm{C}_2}{2\left(\mathrm{C}_1+\mathrm{C}_2\right)}\left(\mathrm{v}_1-\mathrm{V}_2\right)^2\)
**NCERT-34**
TEST SERIES (PHYSICS FST)
266642
Three pure inductances are connected as shown in figure. The equivalent inductance of this connection between A \& B.
1 2 H
2 3 H
3 1 H
4 9 H SECTION-B This section will have 15 questions. Candidate can choose to attempt any 10 questions out of these 15 questions. In case if candidate attempts more than 10 questions, first 10 attempted questions will be considered for marking.
Explanation:
c All are in parallel SECTION-B
**NCERT-PYQ**
TEST SERIES (PHYSICS FST)
266643
The di-electric constant of a medium can be:
266640
When a resistance 2 ohm is placed across a battery the current is 1 A and when the resistance across the terminal is 17 ohm , the current is 0.25 A . The emf of the battery is-
1 4.5 V
2 5 V
3 3 V
4 6 V
Explanation:
b \[ \begin{aligned} & \mathrm{i}_1=\frac{\mathrm{E}}{\mathrm{r}+2}=1 \\ & \frac{\mathrm{E}}{\mathrm{r}+17}=0.25 \\ & \frac{r+17}{r+2}=4 \\ & \Rightarrow 3 \mathrm{r}=9 \\ & \mathrm{r}=3 \mathrm{ohm} \end{aligned} \] from equation (i) E = 5 wolt
**NCERT-111**
TEST SERIES (PHYSICS FST)
266641
A condensor of capacity \(10 \mu \mathrm{~F}\) is charged to a potential of 500 V . Its terminal are then connected to those of an uncharged condensor of capacity \(40 \mu \mathrm{~F}\). The loss of energy in connecting them together is -
1 1 J
2 2.5 J
3 10 J
4 12 J
Explanation:
a Energy loss \(=\frac{\mathrm{C}_1 \mathrm{C}_2}{2\left(\mathrm{C}_1+\mathrm{C}_2\right)}\left(\mathrm{v}_1-\mathrm{V}_2\right)^2\)
**NCERT-34**
TEST SERIES (PHYSICS FST)
266642
Three pure inductances are connected as shown in figure. The equivalent inductance of this connection between A \& B.
1 2 H
2 3 H
3 1 H
4 9 H SECTION-B This section will have 15 questions. Candidate can choose to attempt any 10 questions out of these 15 questions. In case if candidate attempts more than 10 questions, first 10 attempted questions will be considered for marking.
Explanation:
c All are in parallel SECTION-B
**NCERT-PYQ**
TEST SERIES (PHYSICS FST)
266643
The di-electric constant of a medium can be:
