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When two lamps are connected in series to a battery, the electrical
resistance that the battery "senses" is - 🧠 ANSWER ✔✔More than the
resistance of either lamp
When two lamps are connected in parallel to a battery, the electrical
resistance that the battery "senses" is - 🧠 ANSWER ✔✔Less than the
resistance of either lamp
When two identical lamps in a circuit are connected in parallel, the total
resistance is - 🧠 ANSWER ✔✔less than the resistance of either lamp.
, Consider a lamp powered by a battery. Charge flows - 🧠 ANSWER
✔✔through both the battery and the lamp
The direction of the force exerted on a moving charge in a magnetic field is
- 🧠 ANSWER ✔✔at right angles to the direction of the motion
The force on an electron moving in a magnetic field will be least when its
direction is - 🧠 ANSWER ✔✔the same as the magnetic field direction
A beam of singly-charged ions entering a magnetic field are swept into
circular paths. The wider paths are those of - 🧠 ANSWER ✔✔the heavier
ions
When current reverses direction in a wire, the surrounding magnetic field -
🧠 ANSWER ✔✔also reverses direction
A weak and strong magnet repel each other. The greater repelling force is
by the - 🧠 ANSWER ✔✔both the same
The source of all magnetism is - 🧠 ANSWER ✔✔Both or either A and B
A. Electrons rotating around an atomic nucleus
B. Electrons spinning around internal axis