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of wild dogs had gotten into the rubbish bins at
the side of the laboratory and were fighting over the scraps.
4. Marvin unlatched the laboratory's doors and raced outside. Two seconds later, CW bent down and popped
its head through the doorway. Its ultrasonic eyes glowed as it looked around. On its right it could see
Marvin waving his arms at five street dogs. In front, it could see a ridge lined with silhouetted trees and
beyond that a magical sea of twinkling city lights
5. Mesmerised by the lights, CW tore its way through the doors and hurried towards them. Its giant boots
shook the earth with Boom! Boom! each time they came down. They made so much clatter that CW didn't
hear Marvin calling it to come back.
6. CW was past the trees and was moving onto the expressway that flowed to the city. Marvin groaned when
he saw CW elevating three cars, holding them carefully in its hands and start juggling them. Read the following and answer any four questions:
The following is the diagram of an electric motor:
a) Which part of the electric motor in the above figure) can be used as an armature after
some modifications?
(1) POXY
(n) YXOP
(I) ABCD
(iv) ABPQ
Page (4)
b) What are these modifications in the part mentioned above?
1) large number of turns
il) s soft iron core
(1) both large number of turns and a soft iron core
(iv) none of these
Which part in the above diagram is replaced by an electromagnet in order to make a
Commercial motor?
(1) X and Y
(ii) Pando
(im) R
(iv) None of these
d Which part in the above diagram is a device that reverses the direction of flow of
current through a circuit?
1) X and Y
(11) P and Q
(117) R
(iv) None of these
Which part in the above diagramis used as an axle in the electric motor?
6) X and Y
(11) P and q
(in) R
(iv) None of theseकरोना बीमारी से बचा जा सकता
अमझाने व अपने मित्र को पत्र focus on the rectangular surface. Paste / draw the picture on homework sheet with length and width description. After marking the dimensions on the picture (length and width), find its perimeter in centimeters. What would be the effect on the perimeter if we increase the height of the considered object by 3 feet? (03 Marks)