MCQ
The force applied on the machine to overcome the load is called the:
- ✓effort
- Bload
- Cfulcrum
- Dnone of these
✓
Answer
Correct option: A.
effort
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Read the case and answer the following questions:
Case 1: 2 A current is flowing through a copper wire X of length 2 km and radius 2 cm.
Case 2: 4 A current is flowing through a copper wire Y of length 1 km and radius 2 cm.
Case 3: A copper wire Z carrying P amount of current by having potential difference of 16 V and resistance of 2 ohm.
Answer the following question?
(ii) Which wire is offering maximum resistance?
Case 1: 2 A current is flowing through a copper wire X of length 2 km and radius 2 cm.
Case 2: 4 A current is flowing through a copper wire Y of length 1 km and radius 2 cm.
Case 3: A copper wire Z carrying P amount of current by having potential difference of 16 V and resistance of 2 ohm.
Answer the following question?
(ii) Which wire is offering maximum resistance?
A radioactive nuclide ${ }_{86}^{226}$ Ra decays by emission of two alpha particles, one beta particle and gamma rays. Which of the following is the resulting nuclide $X$ ?
→A pulley system consisting of four pulleys has efficiency as $90 \%$. Calculate the mechanical advantage of the system:
→If we used a DC source of 50 Hz, what will happen to the iron rod in the solenoid?
A concave lens forms the image of an object which is : ________ .
Calculate the work done by the effort when a load of 60 kgf is lifted through a distance of 20 m by applying an effort of 30 kgf which is displaced through 60 m using a pulley having velocity ratio of 3 .
If the amplitude of a wave is halved, what will be the effect on its loudness?
A half metre rod is pivoted at the centre with two weights 20 gf and 12 gf suspended at a perpendicular distance of 6 cm and 10 cm from the pivot respectively as shown below:
Which of the two forces acting on the rigid rod causes clockwise moment?
Which of the two forces acting on the rigid rod causes clockwise moment?
An electric appliance has a rating of 1000 W-200 V. The resistance of the element of electric appliance is:
What type of image does a magnifying glass make?