When two components are connected in series, where one is a fixed resistor and the resistance of the other can vary (e.g. thermistor,...

Below are some examples of questions that involve finding the resultant force due to two or three forces. Below are the questions in the...

For these type of questions, it is important to identify which tyre/wheel is connected/powered by the engine or the person. On each tyre...

Do you understand why there is a potential difference between P and Q? What if you are to find the potential difference between P and Q?...

Instead of the usual finding of potential difference across a component, in this question, you are required to find the p.d. across two...

Resistors may be connected in series or parallel. When asked which resistor has higher power (hence higher energy), in general we will...

Resistors may be connected in series or parallel. When asked which resistor has higher power (hence higher energy), in general we will...

Ans: Option A View the video tutorial for the explanation:

Answer: Option C Focal length f is the distance between the focal point and the centre of the lens (optical centre) . Note that only...

When gas in piston and heated but pressure remains constant. It is easier to explain in terms of the average force acting on a unit area....

Answer: Option D View the video tutorial for the explanation

Solutions: (a) (i) A bigger force than F can be obtained due to the lever system and hydraulic system . Lever system: Applying...

Answer: Option A

Answer: Option A Since the air bubble is enclosed, PV at A is equal to PV at B.                   PAVA = PBVB (Patm + Pwater) VA =...

As both the fixed resistor and the thermistor are connected in series, the sum of potential difference across them will be equal to the...

Solutions: Option C When a body is released from rest, the only force acting on the body is its weight due to gravity . Both bodies...

These 2 questions are actually the same. Q23 is from 2010 Pure Physics P1 while Q11 is from 2014 Sci Physics P1. Take a look at these 2...

Answer: Option D

Instead of imaging how the particles will move and guess their motion, there is a technique which can help you to determine that. In...