Practical PhysicsGinn, 1922 - 472 pages |
From inside the book
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Page 142
... circuit at a when it is too cold , and to close the drafts by making contact at b when it is too warm . QUESTIONS AND PROBLEMS FIG . 156 1. Why is the water at the bottom of a lake usually colder than that at the top ? Why is the water ...
... circuit at a when it is too cold , and to close the drafts by making contact at b when it is too warm . QUESTIONS AND PROBLEMS FIG . 156 1. Why is the water at the bottom of a lake usually colder than that at the top ? Why is the water ...
Page 240
... the volt , the practical unit of potential difference , is named in his honor Πλ A MODERN HIGH - TENSION TOWER ON THE SOUTHERN. COUNT ALESSANDRO VOLTA ( 1745-1827 ) FIG . 260. The mag- netic circuit of an electromagnet. Count Alessandro ...
... the volt , the practical unit of potential difference , is named in his honor Πλ A MODERN HIGH - TENSION TOWER ON THE SOUTHERN. COUNT ALESSANDRO VOLTA ( 1745-1827 ) FIG . 260. The mag- netic circuit of an electromagnet. Count Alessandro ...
Page 255
... wire about the magnet by the number of amperes 1 flowing in each turn . Thus , a current. FIG . 260. The mag- netic circuit of an electromagnet FIG . 261. Magnetic field about a circular coil FIG. MAGNETIC EFFECTS OF THE CURRENT 255.
... wire about the magnet by the number of amperes 1 flowing in each turn . Thus , a current. FIG . 260. The mag- netic circuit of an electromagnet FIG . 261. Magnetic field about a circular coil FIG. MAGNETIC EFFECTS OF THE CURRENT 255.
Page 258
... circuit ? Try it . 3. Explain from the diagram of the commercial ammeter the principle of the suspended - coil , or d'Arsonval , type of galvanometer . 4. In calibrating an ammeter the current which produces a certain deflection is ...
... circuit ? Try it . 3. Explain from the diagram of the commercial ammeter the principle of the suspended - coil , or d'Arsonval , type of galvanometer . 4. In calibrating an ammeter the current which produces a certain deflection is ...
Page 259
... circuit of the battery is closed , H B a A and a current flows in at A , through the coils of the magnet , over the closed contact c , and out again at B. But as soon as this current is established , the electromagnet E pulls over the ...
... circuit of the battery is closed , H B a A and a current flows in at A , through the coils of the magnet , over the closed contact c , and out again at B. But as soon as this current is established , the electromagnet E pulls over the ...
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Common terms and phrases
ammeter amperes angle armature ball body calories carbon charge circuit coil color condenser conductor connected convex lens copper cubic centimeter Daniell cell density diameter direction distance dynamo earth electric electric charge electroscope engine equal experiment fact fall flame focal length fork freezing friction galvanic cell galvanometer gases glass gram gravity heat Hence hydrogen inch induced iron kinetic energy lamp Leclanché cell lens lever light lines of force liquid mass mechanical advantage mercury metal meter mirror molecules motion moving needle ohms opposite overtone pass pipe piston placed plane plate pole position potential pressure produced pull pump QUESTIONS AND PROBLEMS rays reflected resistance rotation shown in Fig shows sound specific gravity speed steam substances surface temperature thermometer tion tube vapor velocity vessel vibration volts wave length weight wheel wire zinc
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