2. A BATTERY CONSISTS OF FIVE DRY CELLS CONNECTED IN SERIES. IF THE VOLTAGE DEVELOPED BY EACH CELL IS 1.5 V,THE TOTAL VOLTAGE DEVELOPED BY THE BATTERY IS
A- 0.3 V.
B- 1.5 V.
C- 5.0 V.
D- 7.5 V.
3. THE GRID IN A HIGH-VACUUM TRIODE IS USUALLY KEPT NEGATIVELY CHARGED WITH RESPECT TO THE CATHODE SO THAT THE ELECTRONS MAY BE
A- ACCELERATED TOWARD THE ANODE.
B- ACCELERATED TOWARD THE CATHODE
C- ATTRACTED TO THE ANODE INSTEAD OF THE GRID.
D- ATTRACTED TO THE CATHODE INSTEAD OF GRID.
4. AN EXAMPLE OF AN ATOM THAT HAS NO CHARGE IS ONE THAT HAS
A- 2 PROTONS, 2 ELECTRONS, AND 1 NEUTRON.
B- 1 PROTON, 2 ELECTRONS, AND 3 NEUTRONS.
C- 3 PROTONS, 1 ELECTRON, AND 3 NEUTRONS.
D- 3 PROTONS, 2 ELECTRONS, AND 1 NEUTRON.
2007-02-11
07:48:25
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4 answers
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Anonymous
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