An electric circuit is given below. $V_1 = 1 V$ and Resistance $R = 1000 \Omega$.
The current through the resistance $R$ is very close to $1$ mA and the voltage across point A and B, $V_{AB} = 1 V$. Now the circuit is changed to :
where value of $V_2 = 5 V$. The internal resistances of both the batteries are $0.1 \Omega$. The current through the resistance $R$ is about :
$1.0$ mA
$1.2$ mA
$3.0$ mA
$5.0$ mA
If the current through an electrical machine running on direct current is $15 A$ and the machine runs for $10$ minutes, the charge that passes through the machine during this time is:
$1.50 C$
$150 C$
$900 C$
$9000 C$
Which one of the following is the best shape of a solid metal rod to form the top end of a lightning conductor?
![NDA General Ability 21 April 2024 General Science - Physics Question 97 English Option 1](https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lx58yq9h/3664e2e7-ad6b-4ef3-911b-6742425d757d/bb8a6a50-251b-11ef-aa8a-3911321f30bc/file-6y3zli1lx58yq9i.png?format=png)
![NDA General Ability 21 April 2024 General Science - Physics Question 97 English Option 2](https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lx58zf7n/e4b5534d-bec6-4296-97f1-eb1d6fe34623/ced03130-251b-11ef-aa8a-3911321f30bc/file-6y3zli1lx58zf7o.png?format=png)
![NDA General Ability 21 April 2024 General Science - Physics Question 97 English Option 3](https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lx590w74/cc8050b1-3fdd-483e-9e9f-aa6b2e48261f/f7be4000-251b-11ef-aa8a-3911321f30bc/file-6y3zli1lx590w75.png?format=png)
![NDA General Ability 21 April 2024 General Science - Physics Question 97 English Option 4](https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lx58x4qi/a1ade1e4-d480-4a0c-b2f2-bc5ef0dd8a31/8f1a39a0-251b-11ef-aa8a-3911321f30bc/file-6y3zli1lx58x4qj.png?format=png)
Which of the following forces is/are fundamental in nature?
1. Gravitational force
2. Electromagnetic forces
3. Strong and weak nuclear forces
Select the correct answer using the code given below :
1 only
1 and 2 only
2 and 3 only
1, 2 and 3